PGS 1 to 19forpeter chapman - Rulmeca Corp

RULMECA FAA GmbH, Aschersleben, Germany - Rulmeca Motorized Pulley Manufacturing Facility.

CNC gear shaping CNC gear hobbing system Motor construction

Administrative offices Plate rolling system for large diameter shells

Large Motorized Pulley shipment for North America Motor and gearbox assembly

www.rulmecacorp.com TC101: 03/071

Rulmeca Motorized Pulley Cut-away View and Summary of Key Benefits................................................................................coverRulmeca Motorized Pulleys Application Photos........................................................................................................................ coverRulmeca FAA GmbH Manufacturing Facility Photos ............................................................................. .................................. coverTable of Contents ................................................................................................................................................................... .. 1Rulmeca Motorized Pulleys - Introduction..................................................................................................................................... 2Features and Benefits of Rulmeca Motorized Pulleys ............................................................................................................. 3Rulmeca Motorized Pulleys - General Description ....................................................................................................................... 4

• Motorized Pulley Highlight: “Mounting Orientations” ............................................................................................................. 5• Motorized Pulley Highlight: “Dual Drive Concept” ................................................................................................................. 6

Ordering Information ....................................................................................................................................................................... 7Model 138E (5.45” diameter) specifications ............................................................................................................................. 8-13Model 165E (6.49” diameter) specifications ............................................................................................................................. 14-19Model 220M & 220H (8.50” diameter) specifications .............................................................................................................. 20-28

• Motorized Pulley Highlight: “Compact Drives” ....................................................................................................................... 29Model 320L, 320M & 320H (12.64” diameter) specifications.................................................................................................. 30-38

• Motorized Pulley Highlight: “Tail Drives” ................................................................................................................................ 39Model 400L, 400M & 400H (15.91” diameter) specifications.................................................................................................. 40-48

• Motorized Pulley Highlight: “Hopper Feeder Drives” ......................................................................................................... 49Model 500L, 500M & 500H (19.72” diameter) specifications.................................................................................................. 50-58

• Motorized Pulley Highlight: “Bucket Wheel Excavators & Reclaimers”................................................................................ 59Model 630M & 630H (24.80” diameter) specifications ............................................................................................................ 60-63Model 800M & 800H (31.50” diameter) specifications ............................................................................................................ 64-67Part Lists & Sectional Drawings - 500H, 630M, 630H, 800M & 800H......................................................................................... 68-69

• Motorized Pulley Highlight: “Mechanical Backstops” ............................................................................................................ 70• Motorized Pulley Highlight: “Internal and External Brakes” .................................................................................................. 71

Special Environmental Conditions.................................................................................................................................................. 72-73Bulk Handling Engineering Principles............................................................................................................................................ 74Application Worksheet .................................................................................................................................................................... 75Technical Precautions for Design, Installation and Maintenance................................................................................................. 76-86

• Motorized Pulley Highlight: “Variable Frequency Drives”...................................................................................................... 87International Protection - IP ratings................................................................................................................................................ 88

• Motorized Pulley Highlight: “Lagging Options” ...................................................................................................................... 89Oil Quantities and Oil Types........................................................................................................................................................... 90-91Electrical Connection Diagrams - 138E - 800H........................................................................................................................92-100

Summary of Optional Extras .......................................................................................................................................................... coverInternational Directory..................................................................................................................................................................... cover

Table of Contents


The Rulmeca Motorized Pulleys present-ed in this catalogue have a long historyto tell. It goes back to the 1950’s, whenthe product was developed in Germanyand Denmark.

Eventually, through a merging processthe German Förder und AntriebstechnikAschersleben GmbH and the DanishJohn Kirkegaard Maskinfabrik A/Sbecame partners in the Interroll Group.

From the early 1990’s the manufacturingof all Interroll’s BULK Motorized Pulleyswere centralized in Aschersleben, Ger-many.

In July 2003 Rulli Rulmeca S.p.A. pur-chased the production facility in Ascher-sleben, Germany, where Motorized Pul-leys have been developed and producedfor almost half a century, along with theentire BULK Business Unit.

Today this plant, renamed RulmecaFAA GmbH, will continue the JOKI tradition for quality and reliability underthe Rulmeca brand.

Thanks to this long history Rulmeca is avery experienced manufacturer of BULKMotorized Pulleys, offering the world’slargest product range.

www.rulmecacorp.comwww.precismeca.ab.ca

Rulmeca Motorized Pulleys: a new name with deep roots

Purpose-built designThe Rulmeca Motorized Pulley has beenspecifically designed for belt conveyors.

Hermetically SealedThe motor, gearbox and bearings arehermetically sealed inside a steel shell.Therefore they are unlikely to fail due toharmful environmental conditions suchas water, dust, grit, chemicals, grease,oil, etc.

Space saving designBecause the drive unit and the bearingsare mounted inside the Motorized Pulleyshell, it requires much less room than anexposed drive. No need for costly extraslike chains, v-belts, couplings, bearings,support structure and special guarding.

SafetyThe Rulmeca Motorized Pulley is one ofthe safest drives available because themotor is completely enclosed and theexternal shafts are always stationary.The only moving external parts are theMotorized Pulley shell and bearing hous-ings.

Low purchasing and installation costThe Rulmeca Motorized Pulley is quiteoften less expensive than exposeddrives because it has fewer parts. There-fore less conveyor design time and partspurchasing costs. It is also much quickerand easier to install - certainly less thana quarter of the time taken to fit anexposed system.

Low maintenance costThe end user also benefits from the Rul-meca Motorized Pulley, because itrequires no maintenance other than therecommended oil change every 10,000operating hours and oil seal change

Features and Benefits of Rulmeca Motorized Pulleysevery 30,000 operating hours. In otherwords, almost 5 years between oilchanges based on an 8-hour/day work-ing week. Synthetic oil can be specifiedto extend the oil service life up to 30,000operating hours.

EfficiencyThe Rulmeca Motorized Pulley usuallyhas a much higher efficiency from elec-trical motor to shell (Pulley face) thanexposed drives, because it has fewerfrictional losses. Therefore, efficienciesof up to 97% can be achieved.

CleanlinessBecause the Rulmeca Motorized Pulleyis hermetically sealed it cannot contami-nate any conveying materials such asfood, electrical components, plastics andother materials that must be kept per-fectly clean during handling.

Aesthetic appearanceIf installed correctly the Rulmeca Motor-ized Pulley always looks good. Due to itscompact size and smooth lines, theMotorized Pulley is out of sight, because itis hidden within the conveyor frame.

Thermal protectionAll three phase Rulmeca Motorized Pul-leys are protected by our thermal protec-tion switches. These heat-sensitiveswitches are built into the motor wind-ings to protect the motor from overheat-ing. The thermal protectors must be con-nected to a normally closed control cir-cuit in order to protect the motor.

Weight saving and distributionThe Rulmeca Motorized Pulley is oftenlighter than exposed drives. It is possi-ble to reduce the weight and cost of theconveyor structure, because the convey-

or drive weight is evenly distributed with-in the conveyor frame.

Variable frequency drive All Rulmeca Motorized Pulleys with 3phase motors are easily controlled byvariable frequency drives working in the12 Hz to 66 Hz frequency range. SeeTechnical Precautions in the catalogue.

Fewer parts A Rulmeca Motorized Pulley consists ofthe Motorized Pulley and two fixingbrackets! Exposed drives can require upto eight or more separate components,most of which have to be purchasedfrom different suppliers or custom manu-factured.

Low noiseThanks to the totally sealed enclosureand high quality gears the RulmecaMotorized Pulley runs almost at a whis-per – a very important fact in today’smodern factory environments.

The Rulmeca Motorized Pulley – theideal drive unit for conveyors “Fit itand forget it!”



The Rulmeca Motorized Pulley was firstproduced in 1953 specifically for use onconveyor belt applications.

Until recently it was known as the JOKIMotorized Pulley or JOKI drum motor.

The objective was to produce a compact,hermetically sealed, highly efficient con-veyor drive unit that would be unaffectedby dust, water, oil, grease or other harm-ful substances. A Motorized Pulley thatwould be quick and simple to install andrequire virtually no maintenance.

The Rulmeca Motorized Pulley achievedthis objective and today is considered tobe one of the most reliable, effective andsafe conveyor drive systems availablethroughout the world.

The Rulmeca Motorized Pulley is a high-ly efficient geared motor drive, which ishermetically sealed within a steel cylin-drical shell.

The shell, which is normally crowned toensure belt tracking, is fitted with bearinghousings incorporating precision bear-ings and double lipped oils seals androtates on a pair of fixed shafts.

The motor stator is fixed to the shaftsand the motor winding cables passthrough one of the shafts, eliminating theneed for slip rings and brushes.

General DescriptionThe squirrel cage induction motor, man-ufactured in steel laminate, is machinedconcentric to high tolerances anddesigned to give 200% starting torque for3 phase versions.

The rotor pinion is coupled directly to thegearbox.

The gearbox transmits torque to the shellthrough a geared rim and allows very lit-tle frictional torque loss.

The Motorized Pulley is filled with oil,which acts as a lubricant and coolant.Heat is dissipated through the shell andconveyor belt.

All vital parts are CNC machined.

The Rulmeca Motorized Pulley is sup-plied as standard with:• Machined mild steel crowned shell.• Electric motor manufactured in accor-

dance with IEC 34-1 (EN60034-1),(VDE 0530).

• Class F insulation according to IEC 34-1 (EN60034-1), (VDE 0530).

• Most international voltages. • Standard voltages supplied with +/-

10% tolerance in accordance with IEC38.

• Factory oil filled and tested.• Degree of protect ion IP66/67

(EN60034-5).

Rulmeca Motorized Pulleys are manu-factured according to the Council Direc-tives of the European Communities.

The CE-marking is according to Direc-tive 73/23/EEC relating to electricalequipment and according to Directive89/336EEC relating to electrical magnet-ic compatibility and amendments.


Head Pulley Drive (Above Horizontal Mounting Surface)Typical “head pulley drive position” on sinter conveyor at Chicago area steelmill. Two bolts secure each mounting bracket to top of the horizontal struc-tural surface. This model 630M (24.8” diameter) 30 HP Motorized Pulleydrives the 48” wide belt at 384 FPM. Note that two cables enter terminal boxthrough separate fittings. Power cable connects pulley’s motor to460V/3ph/60 Hz plant supply and control cable connects pulley’s internalthermal protection switches to 115V/1ph/60 Hz normally-closed control cir-cuit. Note that this 2,000 lb Motorized Pulley is fitted with lifting lugs. Photoalso shows jacking screw used to facilitate pulley alignment.

Technical Precaution: Always mount motorized pulley with “UP” directionoriented according to installation instructions (see page 82.)

Center Pulley Drive (On Fixed Vertical Mounting Surface)Photo shows one of two 150 HP Rulmeca Motorized Pulleys in “center driveposition” on two mile long overland conveyor at Lafarge’s Mountsorrel Quar-ry. Transferring granite on the 48” wide belt at various rates up to 2,000TPH, the two Motorized Pulleys are driven by synchronized ABB variablefrequency drives. Two bolts (with locking nuts) secure each mounting brack-et to side of the vertical structural surface. The two drives are mountedbeneath the conveyor belt, 50 feet apart and have an automatic belt take-upsystem operating between them. The Motorized Pulley’s compactness sim-plified the 2006 system upgrade.

Tail Pulley Drive (On Movable Vertical Mounting Surface)TAKRAF mobile crusher uses model 630M 50 HP Rulmeca Motorized Pul-ley in “tail drive position” to move limestone on 100 foot long cantilevereddischarge conveyor at German limestone quarry. Choosing tail rather thanhead drive position enabled designers to avoid suspending the 2,000 lb con-veyor drive unit at the tip of the cantilever. Compact Motorized Pulley easi-ly fit within the expanding bracket-type jacking screw belt take-up.

Technical Precaution: When mounting a motorized pulley in a screw take-up always make sure that pulley centerline is perpendicular to belt center-line to avoid overstressing internal bearings. Also make sure to provide a“festoon loop” in the power cord so that Motorized Pulley will have enoughtravel distance to accommodate normal belt stretch.

Center Pulley Drive (Below Horizontal Mounting Surface)Located in “center drive position” beneath bucket wheel reclaimer boomconveyor at Lake Superior taconite ship loading facility, model 800H 120 HPMotorized Pulley drives boom conveyor belt at 768 FPM. Two bolts (withlocking nuts) secure each mounting bracket to bottom of the horizontalstructural surface. Note two jib keys used to transfer drive torque from shaftto mounting bracket. The 54” wide boom conveyor transfers taconite pelletsfrom boom tip receiving chute to the cantilevered tail conveyor.

Technical Precaution: Always mount motorized pulleys so that 100% of beltforce presses against shoulder or base of mounting brackets (see page 82-83.)

Motorized PulleyMounting Orientations


Motorized PulleysDual Drive Concept

Bucket Wheel Reclaimer for taconite pelletsLocated in “center drive position” beneath a 4,000 TPH bucket wheelreclaimer tail conveyor at Lake Superior taconite ship loading facility, twomodel 800H 120 HP Motorized Pulleys drive discharge belt at 768 FPM.Since the 2004 reclaimer upgrade, each Motorized Pulley is powered by460V/3ph/60 Hz directly by the on-board diesel electric generator. Motorsynchronization was not necessary on either this reclaimer or its two sistermachines at the terminal.

Technical Precaution: Always mount motorized pulley with “UP” directionoriented according to installation instructions.

Suspended Construction Conveyor for wet concreteOne of four 150 foot long “dual drive” conveyors suspended from construc-tion cranes to pour wet concrete during Sesam River Dam construction inSoutheast Asia. During the five year project each conveyor was driven atthe head and tail by a model 800H 50 HP Rulmeca Motorized Pulley.

Overland Conveyor for graniteOne of two 150 HP Rulmeca Motorized Pulleys on two mile long overlandconveyor at Lafarge’s Mountsorrel Quarry in “center drive position.” The twoMotorized Pulleys are driven by synchronized ABB variable frequencydrives (VFDs), transferring granite on the 48” wide belt at various rates upto 2,000 TPH. The VFDs: (1.) provide a “soft start” feature, (2.) enable thetwo drives to “talk” and keep rotor speeds synchronized, and (3.) conservepower by linking to load sensors and optimizing belt speed according tomeasured conveyor throughput.

Technical Precaution: When using a VFD always restrict frequencies tobetween 12 Hz to 66 Hz and install a filter on the VFD output if it is locatedmore than 30 feet from the Motorized Pulley (see page 86.)

Reversing Shuttle Conveyor for crushed graniteOne of two 31.5” diameter 50 HP Motorized Pulleys, one on north end andone on south end, driving reversing shuttle conveyor at Lafarge’s Mountsor-rel granite quarry since 1998. Photo shows stone discharging from 600FPM belt at 2,500 TPH. Changing from a “single drive” to a “dual drive”arrangement can reduce slack-side belt tension (T2) to 20%. This willreduce maximum belt tension (T1) and can significantly extend conveyor beltlife because it provides 360 degrees of belt wrap around pulleys (180degrees per Motorized Pulley), without the use of “dirty side” snub pulleys.

Technical Precaution: When using Motorized Pulleys in reversing applica-tion, always bring conveyor to complete stop before starting belt in oppositedirection (see page 84-85.)


ORDERING* INFORMATIONMotorized Pulleys

Belt Speed (fpm)

1012141824303848607696

120150192240300384480600768960

1064

Lagging Material

black rubber, diamond patternblack rubber, smooth patternwhite rubber, smooth patternred ceramic bonded to pulley shellgreen ceramic vulcanized into rubber

Lagging Bond

cold bondedhot vulcanized

Lagging Thickness

1/8 inch1/4 inch5/16 inch3/8 inch1/2 inch

Type of Oil

standardsyntheticfood grade

Motor Insulation

class F (standard)class H

Type of Crown

center crowntrapezoidal crownno crown

Mounting Brackets

standard paintnickel platednone

Type of Holdback

mech. backstop, clockwisemech. backstop, counterclockwiseinternal brakeexternal brake shaft

Type of Seals

standardregreasable

Material & Surface Finish

mild steel, standard painttotal stainless steelsemi-rust free

Other Special Options

vertical mountnon-horizontal mountCSA approved motordust explosion proof (per ATEX 95,Zone 22)

Diameter(in)

5.456.498.50

12.6415.9119.7224.8031.50

Voltage

208v230v380v460v575v

Phase &Frequency

3ph/60Hz3ph/50Hz1ph/60Hz1ph/50Hz

RollerLength (in)

11.8112.6013.7815.7517.7219.6921.6523.6225.5927.5629.5331.5033.4635.4337.4039.3741.3443.3145.2847.2449.2151.1853.1555.1257.0959.0661.0262.9964.9666.9368.9070.8772.8374.8076.7778.74Other

_______

Power (HP)

0.130.150.250.330.500.751.01.52.03.04.05.57.5101520253040506175

100122150180

Termination (select one)

standard box, standard paintstandard box, food grade paintstandard box, unpainted compact box, unpaintedcompact box. stainless steelpower cord, elbow connectorpower cord, stan. straight connectorpower cord, SS straight connector

Power Cord (if applicable)

4 ft, standard insulation4 ft, screened10 ft, standard insulation10 ft, screened

Contact Person ____________________________ Date ______________ Ref # ________________Company __________________________________________________________________________ Address ___________________________________________________________________________Phone _______________________ Fax ______________________ Email _____________________

Quantity _____ Motorized Pulley(s)Quantity _____ Idler Pulley(s)Special Comments: ___________________________________________________________________________________________________________________________________________

* Note that this form displays all powers, speeds, and options available from Rulmeca. Some combinations are unavailable (e.g.100 HP is not available in 12.64” diameter.) For interactive ordering sheet go to www.rulmecacorp.com.


Motorized Pulley 138E, Ø 5.45 in. (138 mm)Motorized Pulley 138E, withmachined helical gearbox, performswith a gearbox efficiency of 95% ofnominal power, in a compact diame-ter of 5.45 inches. With a minimumroller length (RL) of 11.81” and pow-ers ranging from 0.13 to 1.0 HP, thisMotorized Pulley is suitable for mostsmall diameter applications. Theseinclude:

• Light agricultural conveyors• Light C & D debris conveyors• Mobile and portable conveyors

Motorized Pulley 138E features astandard enclosure class of IP66/67and is also available in stainlesssteel for wash down applications.

STANDARD SPECIFICATIONof Motorized Pulley

• Crowned mild steel 5.45” shell treatedwith anti-rust wax

• Die cast aluminum bearing housing• Mild steel shaft treated with anti-rust

wax• Die cast lightweight aluminum gearbox

housing• Sealing system – degree of protection

IP66/67 (EN60034-5.) See page 88.• Compact die cast aluminum terminal

box with WAGO connectors• Voltage: All common voltages avail-

able. Please specify.• Three phase induction motor• One out of two oil plugs is fitted with a

magnet to filter the oil. • Motor winding insulation class F• Dynamically balanced rotor • Oil change recommended every

10,000 operational hours • Maximum RL 70.87”• Non standard RL lengths available• Single phase is available in 0.33, 0.50,

and 0.75 HP, supplied with a runningcapacitor

• To be used in the horizontal positiononly.

STAINLESS STEELoptions

TS7N• Stainless steel shell – AISI 304 range• Stainless steel shafts – AISI 303 range• Stainless steel covered aluminum bear-

ing housings – AISI 304 range• Stainless steel oil plugs with magnet –

AISI 304 range• Compact stainless steel terminal box –

AISI 304 range• Alternatively, straight stainless steel

connector – AISI 303 range with powercord.

• Regreasable stainless steel seals –AISI 303 range

• Degree of protection IP66/67 (EN60034-5.) See page 88.

• FDA & USDA food grade grease• Option: FDA & USDA food grade rec-

ognized oil.• Special mounting brackets are avail-

able

Please note:

• Noise-sensitive Areas: High speed 2-pole motors can cause higher noiselevels and are not recommended fornoise-sensitive areas

• Technical Precautions for Design,Installation, and Maintenance: pages76-86

• Environmental Considerations: page72

• Optional Extras: pg 9 and back cover• Electrical Connection Diagrams:

pages 94-96.


OPTIONAL EXTRASMotorized Pulley 138E

Specification Availability

Total stainless steel option AISI 304 range TS7N with regreasable labyrinth seals x

Food grade oil & grease - FDA & USDA recognized x

Dust explosion proof Motorized Pulleys - ATEX 95 - Zone 22 - for applications handling dusty grain etc. According to European Directive 94/9/EC. x

Total acid resistant stainless steel option - AISI 316 x

Black rubber lagging - Standard specifications (See page 80.)1/8” smooth lagging - Hardness 60 ±5 Shore A o

White smooth rubber lagging (FDA). Oil, fat & grease resistant o

Special lagging (e.g. hot vulcanized) o

Electromagnetic brake Min. RL increases by 1.97” x

Mechanical backstop Min. RL does not increase with backstop option x

Modified for vertical mounting o

Modified for mounting between 5° and 90° (e.g. for magnetic separators) o

Insulation class F with standard oil: (Allowable ambient temperature: -13°F/+104°F) Std.

Insulation class H with synthetic oil: (Allowable ambient temperature: -13°F/+120°F) x

Special motors for applications with no belt contact o

Low noise drives for noise sensitive areas x

Parallel shell x

Thermal protector Std.

IP66/67 Compact unpainted aluminum terminal box Std.

IP66/67 Compact stainless steel terminal box- AISI 304 or 316 range x

Straight or elbow connector with standard power cord x

Straight connector with screened power cord (See page 86 for VFD precautions) x

Straight connector with standard power cord (Stainless steel in AISI 304 range) x

Voltage: single voltage (460) stator (Y winding) wired for 460v/3ph/60 Hz at terminal box Std.

single voltage (230) stator (YY winding) wired for 230v/3ph/60 Hz at terminal box x

2 speed motors x

Special voltage motors x

Single phase motors o

CSA approved motors x

x = Optional extra’so = An option with certain limitations. Please refer to Technical precautions pages 72-86Std. = Fitted as standard


138E

Cast ironpainted

KL30

S2YAKL

7.09 1.18 0.79 3.39 2.24 0.43 0.67 0.47 0.95 4.33 1.75 2.83 1.54Cast iron Ni plated S2YAKMStainless

steel S3KL33

Motorized Pulley with Terminal box

Motorized Pulley with cablestraight connector

Elbow connector(not for TS7N)

Idler Pulley3 TS7N version

Motorized Pulley or idler Pulley (UT) Compact terminal Straight Elbowbox connector connector

A B C D E F G H K W L M N N1 U V R S TModel in in in in in in in in in in in in in in in in in in in

138E 5.45 5.39 0.93 1.18 2.13 0.79 0.20 0.65 0.93 – 1.61 0.95 3.74 0.55 0.14 0.77 0.79 1.89 0.47UT138E 5.45 5.45 0.93 1.18 2.13 0.79 0.53 0.65 – 1.42

Motorized Pulley 138E, Ø 5.45 in. (138 mm)

1 A dimension is outer diameter of unlagged pulley shell at pulley centerline.2 B dimension is outer diameter of unlagged pulley shell at each end of shell.3 Idler pulley shown is non-crowned TS7N version with regreasable seals.

Mounting brackets

ModelAin

Din

Fin

Iin

Kin

Sin

Tin

Vin

W1in

Xin

Zin

Z1in lbs

MotorizedPulleys

Material BracketSize

PartNumber

Dimensions Weight


Motorized Pulley 138E, Ø 5.45 in. (138 mm) 60 HzMotor

No.Gear

StagesModel

Nominal beltspeed1 atFull Load

60 Hzfpm

Actual beltspeed1 atFull Load

60 Hzfpm

BeltPull2

lbs

Max.RadialLoad3

T1 + T2lbs

Min.RL

in

RL Dimension inches (RLmax = 70.87”)Weight in lbs5 Type

ofBracket

Power

HP

No.of

Poles 11.81 12.60 13.78 15.75 17.72 19.69 21.65 23.62 25.59longerthan

25.59

0.13 123 138E

101214

101416

397318263

1,066 11.81 32 33 34 37 40 42 44 46 49SeeFoot-note4

KL30S2YAKL

2 138E 2430

2428

178152

0.25 83 138E

182430

202429

384309254

2 138E 3848

4451

172147

0.33 63 138E

243038

253138

404325265

2 138E486076

556582

182155124

0.50 4

3 138E384860

384758

412331273

2 138E7696

120150

8598

123150

185158126104

0.75 2

3 138E

48607696

120

55647493113

416363310249205

2 138E150192240300

166196244296

1391199578

1.04 3 138E

7696

120150

88104129157

357304244201 12.60 - 34 37 41 43 45 47 49 53

2 2 138E192240300

207258314

152122100

Idler Pulley Model UT138E 1,066 11.81 15 16 18 21 23 25 27 29 32SeeFoot-note4

KL30S2YAKL

1 Use “nominal belt speed” to specify pulley. “Actual belt speed” is presented (for pulley lagged with 1/8” thick rubber) to assist with process design calculations.See Technical Precautions page 77. Note that “actual belt speed” decreases when lagging is not used due to decreased pulley diameter.

2 Belt pull value allows for gearbox loss.3 Pulley must not be subjected to radial load exceeding “Maximum radial load” defined above. See “Belt Tension” section in Technical Precautions, page 78.4 Additional Motorized Pulley and Idler Pulley weight, specified per Roller Length:

25.59”< RL < 39.37” Wt = 1.3 lbs/inch39.37”< RL < 59.06” Wt = 1.5 lbs/inch59.06”< RL < 70.87” Wt = 2.0 lbs/inch

5 All weights shown above are for pulleys with 1/8” thick rubber lagging. To calculate unlagged pulley weight subtract 0.1 lbs/in of Roller Length from above.


1 Front shaft3 Rear flange5 Bearing housing complete with

geared rim7 Bearing housing complete8 Gearbox

10 Terminal box – bottom part11 Terminal box cover12 Shell16 Rear shaft19 Input wheel20 Output pinion22 Geared rim23 Intermediate pinion shaft24 Intermediate wheel

Pos. Description Pos. Description Pos. Description

Motorized Pulley 138E, Ø 5.45 in. (138 mm)Spare parts list and sectional drawings

31 Labyrinth seal cover53 Nipple (terminal box53.1 Cable seal nipple (cable option)55 Spacer bushing56 Spacer bushing63 Ball bearing64 Needle bearing65–70 Ball bearing71 Inner race74 Locking ring84 Locking ring86 Locking ring93 Elbow or straight connector

102 Screw103 Screw

110 Screw111 Screw113 Screw 114 Socket set screw115 Oil plug with magnet126 Key127 Key131 Key132 Key136 O-ring/Rubber seal138 Rubber seal139 Grease nipple140 Deflection seal142 Double lip seal143 O-ring

2-stage gearbox


145 Distance washer146 Washer148 Washer150 Electromagnetic brake 150.1 Friction disc156 Rectifier (not shown)

160 Oil plug161 O-ring163 O-ring167 Screw200 Rubber seal204 Rotor complete with pinion

208 Stainless steel cover – gearend

210 Fixing guard 223 Cable 226 Stator complete240 Distance ring



TS7N with cable connection 3-stage gearbox Electromagnetic brake

TS7N with cable connection Elbow connector



• Crowned mild steel 6.49” shell treatedwith anti-rust wax

• Die cast aluminum bearing housing• Mild steel shaft treated with anti-rust

wax• Die cast lightweight aluminum gearbox

housing• Sealing system – degree of protection

IP66/67 (EN60034-5.) See page 88.• Compact die cast aluminum terminal

box with WAGO connectors• Voltage: All common voltages avail-

able. Please specify.• Three phase induction motor• One out of two oil plugs is fitted with a

magnet to filter the oil. • Motor winding insulation class F• Dynamically balanced rotor • Oil change recommended every

10,000 operational hours • Maximum RL 70.87”• Non standard RL lengths available• Single phase is available in 0.50 and

1.50 HP, supplied with a running capac-itor

• To be used in the horizontal positiononly.


TS7N• Stainless steel shell – AISI 304 range• Stainless steel shafts – AISI 303 range• Stainless steel covered aluminum bear-

ing housings – AISI 304 range• Stainless steel oil plugs with magnet –

AISI 304 range• Compact stainless steel terminal box –

AISI 304 range• Alternatively, straight stainless steel

connector – AISI 303 range with powercord.

• Regreasable stainless steel seals –AISI 303 range

• Degree of protection IP66/67 (EN60034-5.) See page 88.

• FDA & USDA food grade grease• Option: FDA & USDA food grade rec-

ognized oil.• Special mounting brackets are avail-

able.

Please note:





pages 94-96.

Motorized Pulley 165E, Ø 6.49 in. (165 mm)Motorized Pulley 165E, withmachined helical gearbox, performswith a gearbox efficiency of 95% ofnominal power, in a compact diame-ter of 6.49 inches. With a minimumroller length (RL) of 13.78” and pow-ers ranging from 0.15 to 3.0 HP, thisMotorized Pulley is suitable for mostsmall diameter applications. Theseinclude:

• Light agricultural conveyors• Light C & D debris conveyors• Mobile and portable conveyors

Motorized Pulley 165E features astandard enclosure class of IP66/67and is also available in stainlesssteel for wash down applications.


OPTIONAL EXTRASMotorized Pulley 165E


x = Optional extra’so = An option with certain limitations. Please refer to Technical precautions pages 76-86!Std. = Fitted as standard

Total stainless steel option AISI 304 range TS7N with regreasable labyrinth seals x

Food grade oil & grease - FDA & USDA recognized x

Dust explosion proof Motorized Pulleys - ATEX 95 - Zone 22 - for applications handling dusty grain etc. According to European Directive 94/9/EC. x

Total acid resistant stainless steel option - AISI 316 x

Black rubber lagging - Standard specifications (See page 80.)1/8” smooth lagging - Hardness 60 ±5 Shore A o

White smooth rubber lagging (FDA). Oil, fat & grease resistant o

Special lagging (e.g. hot vulcanized) o

Electromagnetic brake Min. RL increases by 1.97” x

Mechanical backstop Min. RL does not increase with backstop option x

Modified for vertical mounting o

Modified for mounting between 5° and 90° (e.g. for magnetic separators) o

Insulation class F with standard oil: (Allowable ambient temperature: -13°F/+104°F) Std.

Insulation class H with synthetic oil: (Allowable ambient temperature: -13°F/+120°F) x

Special motors for applications with no belt contact o

Low noise drives for noise sensitive areas x

Parallel shell x

Thermal protector Std.

IP66/67 Compact unpainted aluminum terminal box Std.

IP66/67 Compact stainless steel terminal box- AISI 304 or 316 range x

Straight or elbow connector with standard power cord x

Straight connector with screened power cord (See page 86 for VFD precautions) x

Straight connector with standard power cord (Stainless steel in AISI 304 range) x

Voltage: single voltage (460) stator (Y winding) wired for 460v/3ph/60 Hz at terminal box Std.

single voltage (230) stator (YY winding) wired for 230v/3ph/60 Hz at terminal box x

2 speed motors x

Special voltage motors x

Single phase motors o

CSA approved motors x


165E

Steel painted

KL41-HD

6YA0K

7.48 1.57 1.18 3.31 2.44 0.55 0.79 0.87 1.57 4.33 1.97 3.27 4.63Steel Ni plated 6YA0WStainless

steel 6YA0U

Mounting brackets

MotorizedPulleys


PartNumber

Dimensions Weight

Motorized Pulley with cablestraight connector

Elbow connector(not for TS7N)

Idler Pulley3 TS7N version

Motorized Pulley or idler Pulley (UT) Compact terminal Straight Elbowbox connector connector

A B C D E F G H K W L M N N1 U V R S TModel in in in in in in in in in in in in in in in in in in in

165E 6.49 6.44 1.71 1.57 3.15 1.18 0.39 0.85 1.63 – 1.61 0.95 3.74 0.55 0.16 1.06 0.79 1.89 0.47UT165E 6.49 6.49 1.71 1.57 2.95 1.18 0.65 0.85 – 1.81

Motorized Pulley 165E, Ø 6.49 in. (165 mm)Motorized Pulley with Terminal Box

1 A dimension is outer diameter of unlagged pulley shell at pulley centerline.2 B dimension is outer diameter of unlagged pulley shell at each end of shell.3 Idler pulley shown is non-crowned TS7N version with regreasable seals.

ModelAin

Din

Fin

Iin

Kin

Sin

Tin

Vin

W1in

Xin

Zin

Z1in lbs


MotorNo.

GearStages

Model


60 Hzfpm


60 Hzfpm

BeltPull2

lbs

Max.RadialLoad3

T1 + T2lbs

Min.RL

in

RL Dimension inches (RLmax = 70.87”)Weight in lbs5 Type

ofBracket

Power

HP

No.of


31.50

0.15 12 3 165E12141824

14162026

351288233177

2,097

15.75

66 69 72 76 78 80 83 87 90

SeeFoot-note4

KL41-HD6YA0K

0.50

6 3 165E 2430

2530

624512 68 71 75 78 80 83 86 89 92

4

3 165E3848607696

3748597798

414328265202160 64 67 70 73 76 78 81 84 88

2 165E120150192

123152199

12610278

240 251 62 1955

1.00 4

3 165E3848607696

3848597798

810664537409325 2097 70 74 77 80 82 84 88 91 94

2 165E120150192

123152199

256207158

240 251 125 1955

1.50

4 3 165E 60 66 730

2097

75 78 81 84 87 89 92 95 992

3 165E7696

120150192

8199

123161203

569467378288228

2 165E

240300

257318

180145 1955

384480600

416525646

1118874

1562

2.00 2

3 165E120150192

123161203

515393311

2097

77 80 83 87 89 91 94 98 1012 165E

240300

257318

246198 1955

384480600768

416525651787

15112010588

1562

3.00 2

3 165E120150192

132161192

717588466

2097

17.72 - 84 87 91 93 95 98 102 1053 165E 240300

250302

378314 1955

2 165E384480600768

417527648783

227180146121

1562

Motorized Pulley 165E, Ø 6.49 in. (165 mm) 60 Hz


2 Belt pull value allows for gearbox loss.3 Pulley must not be subjected to radial load exceeding “Maximum radial load” defined above. See “Belt Tension” section in Technical Precautions, page 78.4 Additional Motorized Pulley and Idler Pulley weight, specified per inch of Roller Length:

31.50”< RL < 45.28” Wt = 1.5 lbs/in45.28”< RL < 64.96” Wt = 2.1 lbs/in64.96”< RL < 70.87” Wt = 2.9 lbs/in

5 All weights shown above are for pulleys with 1/8” thick rubber lagging. To calculate unlagged pulley weight subtract 0.1 lbs/in of Roller Length from above.

Idler Pulley Model UT165E 2,097 15.75 33 35 39 43 45 47 50 54 58SeeFoot-note4

KL41-HD6YA0K



53 Cable seal nipple (cable option)53.1 Nipple (terminal box)55 Spacer bushing56 Spacer bushing63 Ball bearing64 Needle bearing65–70 Ball bearing71 Inner race73 Locking ring74 Locking ring74 Locking ring81 Locking ring84 Locking ring85 Locking ring86 Locking ring93 Elbow or straight connector

102 Screw103 Screw110 Screw111 Screw112 Socket set screw113 Screw 114 Socket set screw115 Oil plug with magnet126 Key127 Key131 Key132 Key136 O-ring/Rubber seal138 Rubber seal

1 Front shaft3 Rear flange5 Bearing housing complete with

geared rim7 Bearing housing complete8 Gearbox

10 Terminal box – bottom part11 Terminal box cover12 Shell16 Rear shaft19 Input wheel20 Output pinion22 Geared rim23 Intermediate pinion shaft24 Intermediate wheel31 Labyrinth seal cover

2-stage gearbox



139 Grease nipple140 Deflection seal141 Double lip seal142 Double lip seal143 O-ring145 Distance washer146 Washer148 Washer150 Electromagnetic brake 150.1 Friction disc

156 Rectifier (not shown)160 Oil plug161 O-ring163 O-ring167 Screw200 Rubber seal204 Rotor complete with pinion206 Insulated sleeve for wire

protection208 Stainless steel cover – gear

end209 Stainless steel cover – oil plug

end210 Fixing guard 223 Cable 226 Stator complete240 Distance ring

TS7N with cable connection 3-stage gearbox Electromagnetic brake

TS7N Elbow connector



20www.rulmecacorp.com TC101: 03/07

Motorized Pulley 220M & 220H, Ø 8.50 in. (216 mm)Our 8.50” diameter Motorized Pulleyrange offers two differentperformance levels for BULKapplications:

- M for Medium duty- H for Heavy duty

It is important to note the productdifferences and choose theappropriate pulley based onestimated belt tension (radial load.)See page 78. The actual radial loadmust be less than the maximumallowable radial load shown in thiscatalog.

Be aware of increased belt tensions required to drive multi-plythick heavy belts and/or larger beltwidths.

If the 8.50” diameter model is notstrong enough to resist estimatedbelt tension, then select 12.64”diameter model.

M for Medium dutyThe internal parts of 220M aredesigned to match irregular workingconditions in applications such asmobile crushing & screening, cement& concrete plants, mobile conveyorsand open stone & gravel pits.

H for Heavy dutyA reinforced 3-stage-gearboxprovides 220H with the necessarystrength needed for low speeds andhigh torque. 220H is popular in re-cycling (hand sorter conveyors),bunker discharge conveyors andwhere a combination of slow speedand high torque is required.


• Crowned mild steel 8.50” diameter steelshell treated with anti-rust wax

• Powder coated cast iron bearing hous-ings

• Mild steel shafts treated with anti-rustwax

• Shaft sealing system - degree of pro-tection IP66/67 (EN60034-5.) Seepage 88.

• Powder coated die cast aluminum ter-minal box

• 3-phase induction motors with thermalprotector

• Voltage: All common voltages avail-able. Please specify.

• Motor winding insulation Class F• Dynamically balanced rotor• One out of two oil plugs fitted with a

magnet to filter the oil• Oil change recommended every

10,000 operational hours• Minimum RL. Please refer to pages

23-24• Maximum RL – Please inquire• Non standard RL’s available• To be used in horizontal positions ± 5

degree only

Please note:





pages 94-96.


TS9N• Stainless steel shell – AISI 304 range• Stainless steel shafts – AISI 303/4

range• Stainless steel covered bearing hous-

ings – AISI 316 range• Stainless steel oil plugs – AISI 304

range – one out of two with magnet• Stainless steel exterior bolts – AISI 304

range• Regreasable labyrinth seals with

grease nipples in stainless steel– AISI 304 range

• Shaft sealing system – degree of pro-tection IP66/67 (EN60034-5).

TS10N• As TS9N, but without regreasable

labyrinth seals.

SEMI-RUST-FREE optionsTS11N• As TS9N, but with crowned mild steel

shell treated with anti-rust wax.

TS12N• As TS10N, but with crowned mild steel


Other Stainless Options: • FDA & USDA food grade recognized

oil and grease are not included in TS9Nto TS12N, but available on request

• Complete Motorized Pulleys in acidresistant stainless steel – AISI 316range – available on request.

• Special mounting brackets are avail-able

Electrical connection options:• Salt water resistant powder coated

aluminum terminal box with zinc platedexterior bolts

• Stainless steel terminal box – AISI 304range (max. 5.5 HP)

• Straight stainless steel connector withflying lead – AISI 304 range.

Please specify required TS-numberwhen ordering Stainless Steeloptions.


OPTIONAL EXTRASMotorized Pulley 220M & 220H


Total stainless steel option AISI 304 range TS9N with regreasable labyrinth seals xTotal stainless steel option AISI 304 range TS10N with standard seals xSemi-rust free option TS11N with regreasable labyrinth seals xSemi-rust free option TS12N with standard seals xRegreasable labyrinth seals xFood grade oil & grease - FDA & USDA recognized xDust explosion proof Motorized Pulleys - ATEX 95 - Zone 22 - for applications handling of dusty grain etc.According to European Directive 94/9/EC. xTotal acid resistant stainless steel option - AISI 316 xBlack rubber lagging - Standard specifications (See page 80.)

1/4” smooth lagging - Hardness 60 ±5 Shore A o1/4” diamond lagging - Hardness 60 ±5 Shore A o

White smooth rubber lagging (FDA). Oil, fat & grease resistant oSpecial lagging (e.g. hot vulcanized) oElectromagnetic brake Min. RL increases by 3.94” xMechanical backstop Min. RL does not increase with backstop option xModified for vertical mounting oModified for mounting between 5° and 90° (e.g. for magnetic separators) oInsulation class F with standard oil: (Allowable ambient temperature -13°F/+104°F) Std.Insulation class H with synthetic oil: (Allowable ambient temperature -13°F/+120°F) xSpecial motors for applications with no belt contact oLow noise drives for noise sensitive areas xParallel shell (i.e. no crown) xThermal protector Std.IP66/67 Yellow powder coated aluminum terminal box Std.IP66/67 Gray powder coated aluminum terminal box (food grade approved) xIP66/67 Compact powder coated aluminum terminal box (food grade approved) < 5.5 HP only oIP66/67 Compact stainless steel terminal box - AISI 304 or 316 range < 5.5 HP only oStraight or elbow connector with standard power cord < 5.5 HP only xStraight connector with screened power cord (See page 86 for VFD precautions.) < 5.5 HP only x Straight connector with power cord (Stainless steel in AISI 304 range) < 5.5 HP only xVoltage: < 5.5 HP dual voltage (230/460) stator (YY/Y winding) wired for 460v/3ph/60 Hz at terminal box Std.

< 5.5 HP dual voltage (230/460) stator (YY/Y winding) wired for 230v/3ph/60 Hz at terminal box x7.5 HP single voltage (460) stator (Y winding) wired for 460v/3ph/60 Hz at terminal box Std7.5 HP single voltage (230) stator (YY winding) wired for 230v/3ph/60 Hz at terminal box x

2 speed motors xSpecial voltage motors xSingle phase motors oCSA approved motors x

x = Optional extraso = An option with certain limitations. Please refer to Technical precautions pages 76-86Std. = Fitted as standard

1 A dimension is outer diameter of unlagged pulley shell at pulley centerline.2 B dimension is outer diameter of unlagged pulley shell at each end of shell.3 Idler pulley shown is non-crowned TS9N/TS11N version with regreasable seals.

Motorized Pulley or Idler Pulley Standard terminal Compact terminal Straight Elbowbox box < 5.5 HP connector connector

G < 5.5 HP < 5.5 HPA B C D E F G TS9/11 H K W L M N O L M N N1 U V R S T

Model in in in in in in in in in in in in in in in in in in in in in in in in

220M & 220H 8.50 8.44 1.71 1.57 3.94 1.18 0.61 0.77 0.85 1.63 – 3.43 1.06 4.21 4.13 1.61 0.95 3.74 0.55 0.16 1.06 0.79 1.89 0.47UT220M & UT220H 8.50 8.50 1.71 1.57 3.94 1.18 0.61 0.77 0.85 – 2.05

MotorizedPulleys


PartNumber

Dimensions Weight


Motorized Pulley with terminal boxCompact terminal box < 5.5 HP

Standard terminal box

Straight connector

Elbow connector

Idler Pulley3 UT220M / UT220H in TS9N/TS11N

Motorized Pulley 220M & 220H, Ø 8.50 in. (216 mm)

ModelDin

Fin

Iin

Kin

Sin

Tin

Vin

W1in

Xin

X1in

Zin

Z1in lbs

220M &220H

Steel painted

KL41-HD

6YA0K

1.57 1.18 3.31 2.44 0.55 0.79 0.87 1.57 4.33 7.48 1.97 3.27 4.63Steel Ni plated 6YA0W

Stainless steel 6YA0U

Mounting brackets


Motorized Pulley 220M & 220H, Ø 8.50 in. (216 mm) 60 HzMotor

No.Gear

StagesModel


60 Hzfpm


60 Hzfpm

BeltPull2

lbs

Max.RadialLoad3

T1 + T2lbs

Min.RL

in

RL Dimension inches (RL>78.74” available on request)Weight in lbs5 Type

ofBracket

Power

HP

No.of


31.50

0.50 8

3 220H 3038

3440

458383 5620 17.72 - 146* 154 160 168 175 182 189 196

SeeFoot-note4

KL41-HD6YA0K

2 220M

48607696

120150192240300

546984

101128159208250319

28722718515512297756249

2585 15.75 111* 117 125 132 139 146 154 160 168

0.75 8

3 220H 3038

3440

685577 5620 19.69 - - 163 169 177 183 191 198 205

2 220M

48607696

120150192240300

546984

101128159208250319

4303372772311811461129373

2585 17.72 - 126 134 140 148 155 162 169 177

1 8

3 220H243038

283440

1137928774

5620 19.69 - - 163* 169 177 183 191 198 205

2 220M

48607696

120150192240300

546984

101128159208250319

58346037631424719815212699

2585 17.72 - 126* 134 140 148 155 162 169 177

1.5

63 220H

303848

374654

12511021852

5620 19.69 - - 156 163 170 177 184 191 199

2 220M 6076

7291

641506 2585 17.72 - 122* 129 136 144 150 158 165 172

4 2 220M

96120150192240300384480600

108137168201256319415501637

4273372762301801451119373

2585 15.75 106* 113 121 127 135 141 149 156 163

Idler Pulley Model UT220M 2585 15.75 60 65 70 74 80 84 90 94 99 SeeFoot-note4

KL41-HD6YA0K

Model UT220H 5620 15.75 64 69 74 79 84 89 94 98 104



31.50”< RL < 59.06” Wt = 3.7 lbs/in59.06”< RL < 78.74” Wt = 7.1 lbs/in

5 All weights shown above are for pulleys with 1/4” thick lagging. To calculate unlagged pulley weight subtract 0.3 lbs/in of Roller Length from above.*Special “Short Roller Length” Option



No.Gear

StagesModel


60 Hzfpm


60 Hzfpm

BeltPull2

lbs

Max.RadialLoad3

T1 + T2lbs

Min.RL

in


ofBracket

Power

HP

No.of


31.50

2

6 3 220H 4860

5568

1137928 5620 19.69 - - 156 163 170 177 184 191 199

SeeFoot-note4

KL41-HD6YA0K

2 220M 76 91 690 2585 17.72 - 126* 134 140 148 155 162 169 177

4 2 220M

96120150192240300384480600

108137168201256319415501637

58346037631424719815212699

2585 15.75 110* 117 125 132 139 146 154 160 164

3 4

3 220H 6076

6882

13611136 5620 19.69 - - 156* 165 172 179 187 193 201

2 220M

96120150192240300384480600

108137168201256319415501637

855675551460361291223185145

2585 17.72 - 126* 134 140 148 155 162 169 177

4 4

3 220H 96120

104129

1216978 5620 21.65 - - - 169 177 183 191 198 201

2 220M

150192240300384480600

168201256319415501637

751627492396304252197

2585 19.69 - - 138 145 153 159 167 173 181

5.5 2

3 220H 120150

136163

12371033 5620 21.65 - - - 169 177 183 191 198 205

2 220M

192240300384480600

216274336402512636

777614501418329264

2585 19.69 - - 138 145 153 159 167 173 181

7.5 2 3 220H

192240300384480600

202254314408522625

1146909735567443370

5620 21.65 - - - 169 177 183 191 198 205


KL41-HD6YA0K

Model UT220H 5620 15.75 63 69 74 79 84 89 94 98 104



31.50”< RL < 59.06” Wt = 3.7 lbs/in59.06”< RL < 78.74” Wt = 7.1 lbs/in

5 All weights shown above are for pulleys with 1/4” thick lagging. To calculate unlagged pulley weight subtract 0.3 lbs/in of Roller Length from above.*Special “Short Roller Length” Option


Motorized Pulley 220M, Ø 8.50 in. (216 mm)Spare parts list and sectional drawings

1 Shell2 End housing with geared rim3 End housing8 Geared rim9 Rotor pinion

10 Input wheel11 Output pinion12 Gear box13 Front shaft14 Rear shaft15 Stator complete

15.1 Rotor16 Terminal box complete17 Nipple20 Cover20.1 Cover with labyrinth groove23 Rear flange23.1 rear flange for backstop23.2 Rear flange for electromagnetic

Brake24 2 dust lip seals at each side24 Double lip seal at each side for

labyrinth option25 O-ring26 Bearing27 Bearing28 Bearing29 Bearing (Backstop solution:

One-way-bearing)30 Bearing31 Bearing39 Hexagon socket screw40 Hexagon socket screw41 Hexagon socket screw52 Magnetic oil plug

53 Distance washer53.1 Compression nipple59 Countersunk head screw66 Waved spring washer68 Key

70 Toothed washer78 Gasket79 Holding clip or plastic tie85.1 Intermediate flange for brake

assembly91 Electromagnetic brake93 Retaining ring95 Straight connector96 Elbow connector

101 Key104 Distance washer120 Labyrinth cover121 Set screw122 O-ring123 Grease nipple124 Distance washer143 O-ring146 Special shaped compression

washer200 Rubber seal


Compact Terminal Box


Intermediate Shaft


Motorized Pulley 220H, Ø 8.50 in. (216 mm)Spare parts list and sectional drawings


10 Input wheel11 Output pinion12 Gear box 13 Front shaft14 Rear shaft15 Stator complete15.1 Rotor16 Terminal box complete17 Nipple20 Cover20.1 Cover with labyrinth groove23 Rear flange23.1 Rear flange for backstop

85.1 Intermediate flange for brakeassembly

91 Electromagnetic brake93 Retaining ring95 Straight connector96 Elbow connector

101 Key104 Distance washer120 Labyrinth cover121 Set screw122 O-ring123 Grease nipple124 Distance washer143 O-ring146 Special shaped compression

washer180 Intermediate pinion181 Intermediate wheel182 Distance washer184 Roller bearing185 Roller bearing186 Key187 Key188 Spring washer190 Spring washer191 Spring washer194 Set crew196 Key197 Spring washer198 Distance washer200 Rubber seal

23.2 Rear flange for electromagneticbrake

24 2 Dust lip seals each side24 1 double lip seal at labyrinth

option25 O-ring26 Bearing27 Bearing28 Bearing29 Bearing (Backstop solution:

One-way-bearing)30 Bearing40 Hexagon socket screw41 Hexagon socket screw52 Magnetic oil plug53 Distance washer53.1 Compression nipple59 Countersunk head screw66 Waved spring washer68 Key70 Toothed washer78 Gasket79 Holding clip or plastic tie


Short Roller Length Option Labyrinth Option - Mild Steel

Electromagnetic Brake Option Mechanical Backstop Option

Straight Connector Elbow Connector

Motorized Pulley 220M & 220H, Ø 8.50 in. (216 mm)Sectional drawings


Motorized Pulley 220M & 220H, Ø 8.50 in. (216 mm)Sectional drawings

220M & 220HStainless steel options TS10N & TS12N

220M & 220HStainless steel options TS9N & TS11N


Triple Cross BeltsThree 12.64” diameter 5.5 HP motorized pulleys simplify design, installation,and maintenance of cross belt drives in this mobile double screen plant inSpokane, Washington. Mobile screen plant designers frequently use motor-ized pulleys to drive cross belts because of the severe space restrictions inthe drive nest.

Double Triple Cross BeltsThis Canadian mobile screen features four 12.64” diameter 5.5 HP and two12.64” diameter 3 HP cross belt drives. Note the absence of separate motorand gearbox mounting platforms and expanded metal guarding—all elimi-nated through the use of motorized pulleys. Photo taken in Ontario lime-stone quarry in 1994.

Glass Recycling ConveyorThe 12.64” diameter 5.5 HP motorized pulley used at this cullet conveyortransfer point minimizes space requirements. It also offers increased drivereliability (due to its hermetic seals) in the highly abrasive atmosphere.Photo was taken at the Raleigh, North Carolina glass recycling center in1994.

Technical Precaution: When using optional regreasable seals on motorizedpulleys in abrasive applications periodically purge grease through seals toprevent grit-laden grease from causing premature oil seal wear.

Self-cleaning Magnetic SeparatorA 12.64” diameter 4 HP motorized pulley drives cleated belt surroundingelectromagnet on portable crushing/screening system at this Louisiana C &D debris recycling facility. Also in service in Europe, this Austrian-designedrig also features motorized pulleys on screen feed, cross belts, and dis-charge belts.

Technical Precaution: When using electromagnets near motorized pulleysalways direct magnetic flux away from motorized pulley so that flux fielddoes not interfere with motor. It is NOT necessary to use stainless steel pul-ley shells in these applications.

Motorized PulleysCompact Drives


Motorized Pulley 320L, 320M & 320H, Ø 12.64 in. (321 mm)Our 12.64” diameter Motorized Pulleyrange offers three differentperformance levels for BULKapplications:

- L for Light duty- M for Medium duty- H for Heavy duty




L for Light duty320L is designed for regular andcontinuous operating conditions. It isadvisable to rubber lag these pulleysto grip the belt and limit belt tension.Typical applications are portableconveyors and cross belts in mobilecrushing and screening equipment.320L should not be used for lowspeed high torque feeder conveyors.320L uses motor and gearbox from220M.

M for Medium dutyThe internal parts of 320M aredesigned for tough and irregularoperating conditions (e.g. crushing &screening applications, asphalt,cement, and concrete plants.)

H for Heavy dutyA solid 3-stage gearbox, largershafts, and stronger bearings enablethe 320H to provide low speed athigh torque and handle irregularloadings in harsh operatingconditions.


• Crowned mild steel 12.64” diametersteel shell treated with anti-rust wax

• Powder coated cast iron bearing hous-ings

• Mild steel shafts treated with anti-rustwax

• Shaft sealing system – degree of pro-tection IP66/67 (EN60034-5.) Seepage 88.

• Powder coated die cast aluminum ter-minal box



• Motor winding insulation Class F• Dynamically balanced rotor• One out of two oil plugs fitted with a

magnet to filter the oil in 320L• Two oil plugs fitted with a magnet to

filter the oil in 320M & 320H• Oil change recommended every

10,000 operational hours• Minimum RL. Please refer to pages

33-34• Maximum RL – Please inquire.• Non standard RL’s available• To be used in horizontal positions ± 5

degree only

Please note:




• Optional Extras: page 31 and backcover

• Electrical Connection Diagrams:pages 94-96.


TS9N• Stainless steel shell – AISI 304 range• Stainless steel shafts – AISI 303/4 range• Stainless steel covered bearing hous-

ings – AISI 316 range• Stainless steel oil plugs – AISI 304

range – one out of two with magnet• Stainless steel exterior bolts – AISI 304

range• Regreasable labyrinth seals with grease

nipples in stainless steel –AISI 304 range

• Shaft sealing system – degree of pro-tection IP66/67 (EN60034-5).


labyrinth seals.

SEMI-RUST-FREE options





Other Stainless Options: • FDA & USDA food grade recognized oil

and grease are not included in TS9N toTS12N, but available on request

• Complete Motorized Pulleys in acidresistant stainless steel – AISI 316range – available on request.

• Special mounting brackets are avail-able.

Electrical connection options:• Salt water resistant powder coated

aluminum terminal box with zinc platedexterior bolts

• Stainless steel terminal box – AISI 304range (max. 5.5 HP)

• Straight stainless steel connector withflying lead – AISI 304 range.

Please specify required TS-numberwhen ordering Stainless Steel options.


OPTIONAL EXTRASMotorized Pulley 320L, 320M & 320H

x = Optional extraso = An option with certain limitations. Please refer to Technical precautions pages 76-86!Std. = Fitted as standard


Total stainless steel option AISI 304 range TS9N with regreasable labyrinth seals xTotal stainless steel option AISI 304 range TS10N with standard seals xSemi-rust free option TS11N with regreasable labyrinth seals xSemi-rust free option TS12N with standard seals xRegreasable labyrinth seals xFood grade oil & grease - FDA & USDA recognized xDust explosion proof Motorized Pulleys - ATEX 95 - Zone 22 - for applications handling of dusty grain etc.According to European Directive 94/9/EC. xTotal acid resistant stainless steel option - AISI 316 xBlack rubber lagging - Standard specifications (See page 80.)

5/16” diamond lagging - Hardness 60 ±5 Shore A < 7.5 HP x1/4” diamond lagging - Hardness 60 ±5 Shore A 10 HP o

White smooth rubber lagging (FDA listed) Oil, fat & grease resistant oSpecial lagging (e.g. hot vulcanized) oElectromagnetic brake Min RL increases by 3.94” xMechanical backstop Min RL does not increase for 320L, x

Min. RL increases by 1.97” for 320 M & 320H xModified for vertical mounting oModified for mounting between 5° and 90° (e.g. for magnetic separators) oInsulation class F with standard oil: (Allowable ambient temperature -13°F/+104°F) Std.Insulation class H with synthetic oil: (Allowable ambient temperature -13°F/+120°F) xSpecial motors for applications with no belt contact oLow noise drives for noise sensitive areas xParallel shell (i.e. no crown) xThermal protector Std.IP66/67 Yellow powder coated aluminum terminal box Std.IP66/67 Gray powder coated aluminum terminal box (food grade approved) xIP66/67 Compact powder coated aluminum terminal box (food grade approved) < 5.5 HP only oIP66/67 Compact stainless steel terminal box - AISI 304 or 316 range < 5.5 HP only oStraight or elbow connector with standard power cord < 5.5 HP only xStraight connector with screened power cord (See page 86 for VFD precautions) < 5.5 HP only xStraight connector with power cord (Stainless steel in AISI 304 range) < 5.5 HP only xVoltage: < 5.5 HP dual voltage (230/460) stator (YY/Y winding) wired for 460v/3ph/60 Hz at terminal box Std.

< 5.5 HP dual voltage (230/460) stator (YY/Y winding) wired for 230v/3ph/60 Hz at terminal box x> 7.5 HP single voltage (460) stator (Y winding) wired for 460v/3ph/60 Hz at terminal box Std> 7.5 HP single voltage (230) stator (YY winding) wired for 230v/3ph/60 Hz at terminal box x

2 speed motors xSpecial voltage motors xSingle phase motors oCSA approved motors x


Motorized Pulley with terminal boxStandardterminalbox

Compact terminalbox < 5.5HP

Straight connector

Elbow connector

Idler Pulley3 UT320M / UT320H in TS9N/TS11N

Motorized Pulley or idler Pulley Standard terminal Compact terminal Straight Elbowbox box < 5.5 HP connector connector

G < 5.5 HP < 5.5 HPA B C D E F G TS9/11 H K W L M N O L M N N1 U V R S T

Model in in in in in in in in in in in in in in in in in in in in in in in in

320L 12.72 12.56 1.97 1.57 3.78 1.18 0.59 0.75 0.98 2.13 – – – – – 1.61 0.95 3.74 0.55 0.16 1.06 0.79 1.89 0.47320M 12.64 12.56 1.97 1.57 4.92 1.18 0.69 0.89 0.98 2.13 – 3.43 1.06 4.21 4.13 1.61 0.95 3.74 0.55 0.16 1.06 0.79 1.89 0.47320H 12.64 12.56 1.97 1.97 5.83 1.57 0.43 0.81 0.98 2.17 – 3.43 1.06 4.21 4.13 1.61 0.95 3.74 0.55 0.16 1.06 0.79 1.89 0.47UT320M 12.64 12.64 1.97 1.57 4.92 1.18 0.57 0.89 0.98 – 2.05UT320H 12.64 12.64 1.97 1.97 5.83 1.57 0.43 0.81 0.98 – 2.05

Motorized Pulley 320L, 320M & 320H, Ø 12.64 in. (321 mm)

ModelDin

Fin

Iin

Kin

Sin

Tin

Vin

W1in

Xin

X1in

Zin

Z1in lbs

320L &320M

Steel painted

KL41-HD6YA0K



320HSteel painted

KL426YA0J

1.97 1.57 4.76 3.54 0.71 1.18 0.98 1.97 5.91 9.84 2.76 4.33 9.92Steel Ni plated 6YA0S

MotorizedPulleys


PartNumber

Dimensions WeightMounting brackets




2 Belt pull value allows for gearbox loss.3 Pulley must not be subjected to radial load exceeding “Maximum radial load” defined above. See “Belt Tension” section in Technical Precautions, page 78.4 Additional Motorized Pulley and Idler Pulley weight, specified per Roller Length: 31.50”< RL < 62.99” Wt = 6.1 lbs/in; 62.99”< RL < 78.74” Wt = 11.7 lbs/in5 All weights shown above are for pulleys with 1/4” thick lagging. To calculate unlagged pulley weight subtract 0.5 lbs/in of Roller Length from above.

* Special “Short Roller Length” Option

MotorNo.

GearStages

Model


60 Hzfpm


60 Hzfpm

BeltPull2

lbs

Max.RadialLoad3

T1 + T2lbs

Specialmin.RL

in


ofBracket

Power

HP

No.of


33.46

1 12

3 320H 2430

2532

1241984 7868 21.65 - - 308* 317 329 341 354 366 378

SeeFoot-note4

KL426YA0J

2 320M

3848607696

120150192

41546983

108135166212

774581461377291233190148

4496 19.69 - 251* 261 271 281 291 301 310 320 KL41-HD6YA0K

1.5

123 320H 24

302532

18211444 7868 21.65 - - 308* 317 329 341 354 366 378 KL42

6YA0J2 320M 38

484154

1128851

4496 19.69 - 251* 261 271 281 291 301 310 320 KL41-HD6YA0K8 2 320M

607696

120150192240300

6181

103126162203249319

752568450368285228186145

Motorized Pulley 320M & 320H, Ø 12.64 in. (321 mm) 60 Hz

MotorNo.

GearStages

Model


60 Hzfpm


60 Hzfpm

BeltPull2

lbs

Max.RadialLoad3

T1 + T2lbs

Min.RL

in


ofBracket

Power

HP

No.of


31.50”

1 8 2 320L

7696

120150192240300

78100122146186231300

402317259216170137105

2585 17.72 - 180* 190 200 209 219 223 239 249

SeeFoot-note4

KL41-HD6YA0K

1.5

6 2 320L 120 132 349 2585 17.72 - 185 194 204 214 224 234 243 253

4 2 320L

150192240300384480600

157199243292371462602

29423319015912410077

2585 15.75 168* 176 185 195 205 215 225 234 244

2

6 2 320L 120 132 476 2585 17.72 - 189 199 209 218 228 238 248 258

4 2 320L

150192240300384480600

157199243292371462602

402317259216170137105

2585 15.75 172* 180 190 200 209 219 229 239 249

3 4 2 320L

150192240300384480600

157199243292371462602

590466380317249200154

2585 17.72 - 189* 199 208 218 228 238 248 258

4 4 2 320L240300384480600

243292371462602

518433340273210

2585 19.69 - - 207 217 227 237 247 257 266

5.5 2 2 320L300384480600

314397487583

536423345289

2585 19.69 - - 207 217 227 237 247 257 266

Motorized Pulley 320L, Ø 12.64 in. (321 mm) 60 Hz

33



2 Belt pull value allows for gearbox loss.3 Pulley must not be subjected to radial load exceeding “Maximum radial load” defined above. See “Belt Tension” section in Technical Precautions, page 78.4 Additional Motorized Pulley and Idler Pulley weight, specified per Roller Length: 31.50”< RL < 62.99” Wt = 6.1 lbs/in; 62.99”< RL < 78.74” Wt = 11.7 lbs/in5 All weights shown above are for pulleys with 1/4” thick lagging. To calculate unlagged pulley weight subtract 0.5 lbs/in of Roller Length from above.


34


No.Gear

StagesModel


60 Hzfpm


60 Hzfpm

BeltPull2

lbs

Max.RadialLoad3

T1 + T2lbs

Min.RL

in

RL Dimension inches (RL>78.74” available on request)Weight in lbs5

Type of

BracketPower

HP

No.of


33.46”

2 8

3 320H 3848

3848

16551312

7868 21.65 - - 308* 317 329 341 354 366 378

SeeFoot-note4

KL426YA0J

2 320M

607696

120150192240300

6181

103126162203248318

1026774614503389311253198

4496 19.69 - 252* 261 271 281 291 301 310 320 KL41-HD6YA0K

3

83 320H 38

488748

24271925 7868 21.65 - - 308* 317 329 341 354 369 378 KL42

6YA0J

2 320M607696

6181

103

15051136903

4496 19.69 - 252* 261 271 281 291 301 310 320 KL41-HD6YA0K

4 2 320M

120150192240300384480600

123163206251324406498637

752568450368285228186145

4496 19.69 - 229* 239 249 258 268 278 288 298 KL41-HD6YA0K

4

6 3 320H486076

516478

248319691613

7868 21.65 - - 308* 317 329 341 354 366 378 KL426YA0J

2 320M 96 108 1161

4496 19.69 - 229* 239 249 258 268 278 288 298 KL41-HD6YA0K4 2 320M

120150192240300384480600

123163206251324406498637

1026774614503389311253198

5.5

6 3 320H7696

120

78101123

215116611368

7868 21.65 - - 308* 317 329 341 354 366 378 KL426YA0J

4 2 320M

150192240300384480600

163206251324406498637

1032819670518414338264

4496 19.69 - 252* 261 271 281 291 301 310 320 KL41-HD6YA0K

7.5 4

3 320H96

120150

96117152

240619711523

7868 21.65 - - 308* 317 329 341 354 366 378 KL426YA0J

2 320M

192240300384480600

206251324406498637

1125923713569465363

4496 19.69 - 252* 261 271 281 291 301 310 320 KL41-HD6YA0K

10 2

3 320H150192240

153192235

206916401344

7868 21.65 - - 308* 317 329 341 354 366 378 KL426YA0J

2 320M300384480600

325411501649

968768629486

4496 19.69 - - 261 271 281 291 301 310 320 KL41-HD6YA0K


KL41-HD6YA0K

Model UT320H 7868 17.72 131 143 153 163 173 183 193 202 212 KL426YA0J



10 Input wheel11 Output pinion12 Gear box13 Front shaft14 Rear shaft15 Stator complete15.1 Rotor16 Terminal box complete

17 Nipple20 Cover20.1 Cover with labyrinth groove23 Rear flange23.1 Rear flange for backstop23.2 Rear flange for electromagnetic

brake24 2 Dust lip seals each side24 1 Double lip seal for labyrinth

option25 O-ring26 Bearing27 Bearing28 Bearing29 Bearing (Backstop solution:

One-way-bearing)30 Bearing31 Bearing39 Hexagon socket screw40 Hexagon socket screw52 Magnetic oil plug53 Distance washer53.1 Compression nipple

59 Countersunk head screw66 Waved spring washer68 Key70 Toothed washer

78 Gasket79 Holding clip or plastic tie85 Intermediate flange for backstop85.1 Intermediate flange for brake

assembly91 Electromagnetic brake93 Retaining ring95 Straight connector96 Elbow connector

101 Key104 Distance washer120 Labyrinth cover121 Set screw122 O-ring123 Grease nipple143 O-ring146 Special shaped compression


Motorized Pulley 320L, Ø 12.64 in. (321 mm)Spare parts list and sectional drawings


Compact Terminal Box


29 Bearing30 Bearing31 Bearing32 Retaining ring33 Retaining ring 35 Retaining ring37 Hexagon socket screw43 Hexagon socket screw44 Hexagon socket screw45 Hexagon head screw46 Hexagon head screw49 Washer52 Magnetic oil plug53 Distance washer53.1 Compression nipple60 Parallel pin64 Prevailing torque type hexagon

nut66 Waved spring washer67 Waved spring washer68 Key70 Waved spring washer75 Gasket


10 Input wheel11 Output pinion12 Gear box13 Front shaft14 Rear shaft15 Stator complete15.1 Rotor16 Terminal box complete17 Nipple20 Cover20.1 Cover with labyrinth groove23 Rear flange23.1 Rear flange for backstop/Brake24 2 Dust lip seals each side25 O-ring26 Bearing27 Bearing28 Bearing

78 Gasket79 Holding clip or plastic tie85 Intermediate flange for back-

stop85.1 Intermediate flange for brake

assembly91 Electromagnetic brake93 Retaining ring94 Hexagon head screw95 Straight connector 96 Elbow connector99 Waved spring washer

101 Key104 Distance washer120 Labyrinth cover121 Set screw122 O-ring123 Grease nipple143 O-ring146 Special shaped compression





70 Waved spring washer73 Set screw75 Gasket78 Gasket79 Holding clip or plastic tie80 Hexagon head screw84 Rear flange for brake85 Intermediate flange for backstop85.1 Intermediate flange for brake

assembly90 Backstop91 Electromagnetic brake93 Retaining ring94 Hexagon head screw95 Straight connector96 Elbow connector99 Waved spring washer

101 Key104 Distance washer120 Labyrinth cover121 Set screw122 O-ring123 Grease nipple


10 Input wheel11 Output pinion12 Gear box 13 Front shaft14 Rear shaft15 Stator complete15.1 Rotor16 Terminal box complete17 Nipple20 Cover front side20.1 Cover with labyrinth groove21 Cover – rear side21.1 Cover with labyrinth groove23 Rear flange23.1 Rear flange for brake option24 2 Dust lip seals each side25 O-ring26 Bearing27 Bearing28 Bearing29 Bearing20 Cover front side20.1 Cover with labyrinth groove21 Cover – rear side21.1 Cover with labyrinth groove23 Rear flange23.1 Rear flange for brake option24 2 Dust lip seals each side25 O-ring26 Bearing 27 Bearing28 Bearing29 Bearing30 Bearing31 Bearing32 Retaining ring 33 Retaining ring35 Retaining ring37 Hexagon socket screw43 Hexagon head screw44 Hexagon head screw45 Hexagon head screw46 Hexagon head screw49 Washer52 Magnetic oil plug53 Distance washer53.1 Compression nipple60 Parallel pin64 Hexagon head nut66 Waved spring washer67 Waved spring washer68 Key

143 O-ring146 Special shaped compression

washer180 Intermediate pinion shaft181 Intermediate pinion182 Distance bushing183 Washer184 Roller bearing185 Roller bearing186 Key187 Key188 Retaining ring190 Retaining ring191 Retaining ring192 Retaining ring193 Distance washer194 Set screw195 Prevailing torque type hexagon

nut196 Key197 Retaining ring198 Distance ring200 Rubber seal




320L TS9N Elbow Connector

Straight Connector

Stainless Steel Option

Electromagnetic Brake Option

Backstop Option

RegreasableLabyrinth Option

TS9N & TS11NLabyrinth Option(valid for 320M)

TS10N & TS11Nwithout labyrinth

Motorized Pulley 320L, 320M & 320H, Ø 12.64 in. (321 mm)Sectional drawings

sealed withsealing compound

the pos. no. in brackets(21 & 21.1) is valid for320H 3-stage


Taconite Ship Loading Terminal (Michigan—USA)DEMAG crawler-mounted bucket wheel reclaimer handles taconite pellets at5,000 TPH on 72” wide boom and tail belts at this Escanaba, Michigan facil-ity. Terminal operator replaced both original Kufnagel conveyor drives with40” diameter Rulmeca Motorized Pulleys in 1985 after 13 years of service.Photo shows tail-mounted 200 HP drive pulley for discharge conveyor.

Marl Pit at Cement Plant (South Carolina—USA)FAM delivered this crawler-mounted bucket wheel reclaimer in 2002 toexcavate marl from a pit adjacent to the producer’s cement plant nearCharleston, South Carolina. It uses tail-mounted 31.5” diameter 100 HPMotorized Pulleys to drive the 54” wide boom and tail conveyor belts at 600fpm. Externally mounted brakes prevent material from “rolling backwards”when conveyors are stopped because both conveyors can articulate to a 16ºmaximum inclination.

Granite Quarry (Connecticut—USA)Built in 2003 by RR Equipment, this mobile recirculating crushing andscreening rig uses a tail-mounted 15 HP 15.75” diameter Motorized Pulleyto drive the 36” wide 300 TPH 58’ long screen feed conveyor. Note that useof slender “Telescoping” mechanical belt take-up allows compact and light-weight structure. This plant adheres to the maximum US highway clearancerequirements of 12’-0” wide by 13’-6” high.

Technical Precaution: When mounting a motorized pulley in a screw take-up always make sure that pulley centerline is perpendicular to belt center-line to avoid overstressing internal bearings.

Trap Rock Quarry (New York—USA)Allis Mineral Systems delivered this 850 TPH recirculating crushing andscreening plant in 1994. The tail-mounted 15.75” diameter 15 HP MotorizedPulley drives the 36” wide screen feed belt, in tandem with an identicalhead-mounted drive, at 384 fpm. Motorized Pulleys enabled designers toadhere to the 12’ maximum allowable US highway clearance width. Taildrive is mounted in a “Sliding Pedestal” mechanical belt take-up.

Technical Precaution: When mounting a motorized pulley in a screw take-up always make sure that pulley centerline is perpendicular to belt center-line to avoid overstressing internal bearings.

Motorized PulleysTail Drives


• Crowned mild steel 15.91” diameter steelshell painted yellow at a minimum thick-ness of 2.4 mils

• Bolted powder coated cast iron bearinghousings and covers, all painted yellowat a minimum thickness of 2.4 mils

• Mild steel shafts treated w/anti-rust wax• Shaft sealing system - degree of protec-

tion IP66/67 (EN60034-5.) See pg 88.• Powder coated aluminum terminal box

for 400L• Cast iron terminal box for 400M & 400H

painted yellow at min.thickness of 2.4mils


• Voltage: All common voltages available.Please specify.

• Motor winding insulation Class F• Dynamically balanced rotor• Two oil plugs each fitted with a magnet

to filter the oil• Oil change recommended every 10,000

operational hours• Minimum RL. Refer to pages 43-44 • Maximum RL - Please inquire• Non standard RL’s available• To be used in horizontal positions ±5

degree only

Please note:

• Noise-sensitive Areas: High speed 2-pole motors can cause higher noise lev-els and are not recommended for noise-sensitive areas


• Environmental Considerations: pg 72• Optional Extras: pg 41 and back cover• Electrical Connection Diagrams:

pages 94-96.

STAINLESS STEEL options

TS9N • Stainless steel shell - AISI 304 range• Stainless steel shafts - AISI 303/4 range• Stainless steel covered bearing hous-

ings - AISI 316 range• Regreasable bearing covers with

labyrinth grooves and labyrinth sealswith grease nipples in stainless steel- AISI 304 range







L for Light duty400L is designed for regular andcontinuous operating conditions. Itis advisable to rubber lag thesepulleys to grip the belt and limit belttension. A popular application is self-cleaning magnetic separators. 400Luses motor and gearbox from 320M.

M for Medium duty400M is designed for tough andirregular operating conditions. 400Mis typically used in heavy mobilecrushing & screening applications aswell as in crushed stone, ore,cement, steel, and fertilizer handling.

H for Heavy dutyA solid 3-stage gearbox enables the400H to provide low speed at hightorque and handle irregular loadingsin harsh operating conditions.

• Stainless steel oil plugs - AISI 304range – one out of two with magnet

• Stainless steel exterior bolts - AISI 304range

• Shaft sealing system – degree of pro-tection IP66/67 (EN60034-5) See pg 88

TS10N • As TS9, but without regreasable

labyrinth seals


TS 11N• Painted mild steel shell – min. thickness

of 4.7 mils• Stainless steel shafts - AISI 303/4 range• Stainless steel covered cast iron bear-

ing housing - AISI 316 range• Regreasable bearing covers with

labyrinth grooves and grease nipples instainless steel - AISI 304 range

• Stainless steel oil plugs – AISI 304range - one out of two with magnet

• Stainless steel exterior bolts - AISI 304range

• Shaft sealing system - degree of pro-tection IP66/67 (EN60034-5)

• Powder coated terminal box for 400L• Painted terminal box - min. thickness of

4.7 mils for 400M & 400H


seals.• Covers - standard

Other Stainless Options:

• FDA & USDA food grade recognized oiland grease are not included in TS9N -TS12N, but available on request

• Complete Motorized Pulleys in acidresistant stainless steel - AISI 316range - available on request.

• Special mounting brackets available

Electrical connection options:

• Salt water resistant powder coated alu-minum terminal box with zinc platedexterior bolts

• Stainless steel terminal box - AISI 304range (400L < 5.5 HP only)

• Straight stainless steel connector withflying lead - AISI 304 range < 5.5 HPonly.

Please specify required TS-numberwhen ordering Stainless Steeloptions..



x = Optional extraso = An option with certain limitations. Please refer to Technical precautions pages 76-86.Std. = Fitted as standard

Total stainless steel option AISI 304 range TS9N with regreasable labyrinth seals xTotal stainless steel option AISI 304 range TS10N with standard seals xSemi-rust free option TS11N with regreasable labyrinth seals xSemi-rust free option TS12N with standard seals xRegreasable labyrinth seals xFood grade oil & grease - FDA & USDA recognized xDust explosion proof Motorized Pulleys - ATEX 95 - Zone 22 - for applications handling of dusty grain etc.According to European Directive 94/9/EC. xTotal acid resistant stainless steel option - AISI 316 range xBlack rubber lagging - Standard specifications (See page 80.)

5/16” full diamond lagging - Hardness 60 ±5 Shore A < 15 HP o5/16” partial diamond lagging - Hardness 60 ±5 Shore A 20 HP o

White smooth rubber lagging (FDA listed) - Oil, fat & grease resistant oSpecial lagging (e.g. hot vulcanized) oElectromagnetic brake Min RL increases by 3.94” xMechanical backstop Min. RL increases by 1.97” for 400L x

Min. RL = 29.53” for 400M xMin. RL = 31.50” for 400H x

Modified for vertical mounting oModified for mounting between 5° and 90° oInsulation class F with standard oil: (Allowable ambient temperature -13°F/+104°F) Std.Insulation class H with synthetic oil: (Allowable ambient temperature -13°F/+120°F) xSpecial motors for applications with no belt contact oLow noise drives for noise sensitive areas xParallel shell (i.e. no crown) xThermal protector Std.IP66/67 Standard yellow powder coated aluminum terminal box 400L Std.IP66/67 Optional gray powder coated aluminum terminal box (food grade approved) 400L xIP66/67 Standard yellow powder coated cast iron terminal box 400M & 400H Std.Straight or elbow connector with standard power cord < 5.5 HP only xStraight connector with screened power cord (See page 86 for VFD precautions) < 5.5 HP only xStraight connector with power cord (Stainless steel in AISI 304 range) < 5.5 HP only xVoltage: < 5.5 HP dual voltage (230/460) stator (YY/Y winding) wired for 460v/3ph/60 Hz at terminal box Std.

< 5.5 HP dual voltage (230/460) stator (YY/Y winding) wired for 230v/3ph/60 Hz at terminal box x> 7.5 HP single voltage (460) stator (Y winding) wired for 460v/3ph/60 Hz at terminal box Std> 7.5 HP single voltage (230) stator (YY winding) wired for 230v/3ph/60 Hz at terminal box x

2 speed motors xSpecial voltage motors xCSA approved motors x



Motorized Pulley with terminal box400LstandardAl termi-nal box

400M & 400Hstandard castiron terminalbox

400LCompact Al terminalbox < 5.5 HP

Straight connector

Elbow connector

Idler Pulley3

UT400L / UT400M / UT400H

Motorized Pulley or idler Pulley Standard terminal Compact terminal Straight Elbowbox box <5.5 HP connector connector

< 5.5 HP < 5.5 HPA B C D E F G H K L M N O L M N N1 U V R S T

Model in in in in in in in in in in in in in in in in in in in in in in

400L 15.91 15.75 1.97 1.57 4.92 1.18 0.79 0.98 2.13 3.43 1.06 4.21 4.13 1.61 0.95 3.74 0.55 0.16 1.06 0.79 1.89 0.47400M & 400H 15.91 15.75 1.97 2.36 7.64 1.77 0.91 0.98 1.97 3.94 1.44 – 6.14 3.94 1.44 – – – – – – –UT400L 15.91 15.91 1.97 1.57 4.92 1.18 0.67 0.98 –UT400M & UT400H 15.91 15.91 1.97 2.36 6.61 1.77 0.79 0.98 –

Motorized Pulley 400L, 400M & 400H, Ø 15.91 in. (404 mm)

ModelDin

Fin

Iin

Kin

Sin

Tin

Vin

W1in

Xin

X1in

Zin

Z1in lbs

400L

Steel painted

KL4-HD

6YA0K



400M &400H

Steel paintedKL60

6YA092.36 1.77 5.12 3.54 0.71 1.18 0.98 1.97 5.91 10.63 2.76 4.53 10.58Steel

Ni plated 6YA0D

Mounting bracketsMotorizedPulleys


PartNumber

Dimensions Weight



Motorized Pulley 400L, Ø 15.91 in. (404 mm) 60 HzMotor

No.Gear

StagesModel


60 Hzfpm


60 Hzfpm

BeltPull2

lbs

Max.RadialLoad3

T1 + T2lbs

Min.RL

in


ofBracket

Power

HP

No.of

Poles 19.69 21.65 23.62 25.59 27.56 29.53 31.50 33.46 35.43 37.40longerthan

37.40

3 4 2 400L

192240300384480600

201240303395498613

460385305234186151

4496 19.69 276* 288 300 312 324 337 349 361 373 385

SeeFoot-note4

KL41-HD6YA0K

4 4 2 400L

150192240300384480600

163201240303395498613

771627524416319253206

4496 19.69 276* 288 300 312 324 337 349 361 373 385

5.5 4 2 400L

192240300384480600

201240303395498613

836700554425338274

4496 19.69 298* 310 322 334 346 359 371 383 395 407

7.5 4 2 400L300384480600

303395498613

778598474386

4496 19.69 298* 310 322 334 346 359 371 383 395 407

10 2 2 400L384480600768

402481607791

784655520399

4496 19.69 298* 310 322 334 346 359 371 383 395 407

Idler Pulley Model UT400L 4496 19.69 188 200 212 224 236 249 261 273 285 297SeeFoot-note4

KL41-HD6YA0K


2 Belt pull value allows for gearbox loss.3 Pulley must not be subjected to radial load exceeding “Maximum radial load” defined above. See “Belt Tension” section in Technical Precautions, page 78.4 Additional Motorized Pulley and Idler Pulley weight, specified per Roller Length: 37.40”< RL < 78.74” Wt = 6.2 lbs/in.5 All weights shown above are for pulleys with 5/16” thick lagging. To calculate unlagged pulley weight subtract 0.6 lbs/in of Roller Length from above.




No.Gear

StagesModel


60 Hzfpm


60 Hzfpm

BeltPull2

lbs

Max.RadialLoad3

T1 + T2lbs

Min.RL

in


ofBracket

Power

HP

No.of


39.37

3 8

3 400H384860

445464

212117251442

11,250 25.59 - 533 547 563 577 591 605 619 634

SeeFoot-note4

KL606YA09

2 400M

7696

120150192240300384

82101121152197248307390

1131920770610468371302238

9,100 23.62 442 456 470 485 500 514 528 542 557

5.5 8

3 400H486076

546481

313726232079

11,250 25.59 - 553 567 582 597 611 625 639 654

2 400M

96120150192240300384

101121152197248307390

167313991108851675548432

9,100 23.62 462 476 490 505 519 534 548 562 576

7.5 4

3 400H7696

120

87107128

265121561803

11,250 25.59 - 533 547 563 577 591 605 619 634

2 400M

150192240300384480600768

163201240303395498613778

14131150962762585465377297

9,100 23.62 442 456 470 485 500 514 528 542 557

10

6 3 400H96

120150

108140177

292322441782

11,250 29.53 - - - 602 616 631 645 659 673

4 2 400M

192240300384480600768

201240303395498613778

156813111039798633515405

9,100 23.62 455 469 483 499 513 527 541 556 570

15 4

3 400H150192240

162211265

285921941742

11,250 29.53 - - - 602 616 631 645 659 673

2 400M300384480600768

303395498613778

15251170929754594

9,100 27.56 - - 510* 525 539 554 568 582 596

20 2

3 400H192240300

214257323

294024591949

11,250 29.53 - - - 602 616 631 645 659 673

2 400M384480600768

402481607791

156813111039798

9,100 27.56 - - 510* 525 539 554 568 582 596

Idler Pulley UT400M 9,100 23.62 264 277 294 309 323 333 347 362 376 SeeFoot-note4

KL606YA09

UT400H 11,250 25.59 - 288 305 320 334 344 358 373 387


2 Belt pull value allows for gearbox loss.3 Pulley must not be subjected to radial load exceeding “Maximum radial load” defined above. See “Belt Tension” section in Technical Precautions, page 78.4 Additional Motorized Pulley and Idler Pulley weight, specified per Roller Length: 39.37”< RL < 78.74” Wt = 7.3 lbs/in.5 All weights shown above are for pulleys “fully lagged” with 5/16” thick rubber. For “partially lagged” pulleys add 5% to 10% to the weights shown above.

See page 80 for “partial lagging.” To calculate unlagged pulley weight subtract 0.6 lbs/in of Roller Length from above.


44


28 Bearing29 Bearing 30 Bearing31 Bearing32 Retaining ring 33 Retaining ring37 Hexagon socket screw38 Hexagon socket screw43 Hexagon screw44 Hexagon screw45 Hexagon socked head screw46 Hexagon screw49 Washer50 Washer52 Magnetic oil plug53 Distance washer53.1 Compression nipple60 Parallel pin64 Prevailing torque type hexagon

nut66 Waved spring washer67 Waved spring washer68 Key

1 Shell2 End housing with geared rim8 Geared rim9 Rotor pinion

10 Input wheel11 Output pinion12 Gear box – cast aluminum13 Front shaft14 Rear shaft15 Stator complete15.1 Rotor16 Terminal box complete17 Nipple20 Cover – front side20.1 Cover with labyrinth groove21 Cover – rear side21.1 Cover with labyrinth groove23 Rear flange24 2 Dust lip seals each side23 1 Double lip seals for labyrinth

option26 Bearing27 Bearing

73 Set screw75 Gasket

76 Gasket77 Gasket78 Gasket79 Holding clip or plastic tie85 Intermediate flange for backstop85.1 Intermediate flange for brake

assembly90 Backstop91 Electromagnetic brake93 Retaining ring94 Hexagon head screw95 Straight connector96 Elbow connector99 Waved spring washer

101 Key104 Distance washer120 Labyrinth cover121 Set screw122 O-ring123 Grease nipple143 O-ring146 Special compression washer200 Rubber seal




24 2 Dust lip seals each side26 Bearing27 Bearing28 Bearing29 Bearing30 Bearing31 Bearing32 Retaining ring36 Hexagon head screw45 Hexagon screw

50 Waved spring washer52 magnetic oil plug37 Hexagon socket screw38 Hexagon socket screw43 Hexagon screw44 Hexagon screw52 Magnetic oil plug53 Distance washer66 Waved spring washer


10 Input wheel11 Output pinion12 Gear box – cast aluminum13 Front shaft14 Rear shaft15 Stator complete15.1 Rotor16 Terminal box complete17 Nipple20 Cover – front side20.1 Cover with labyrinth groove21 Cover – rear side21.1 Cover with labyrinth groove23 Rear flange

67 Waved spring washer70 Spring washer73 Set screw75 Gasket76 Gasket77 Gasket78 Gasket85 Intermediate flange 90 Backstop91 Electromagnetic brake93 Retaining ring94 Hexagon head screw99 Waved spring washer

101 Key104 Distance washer120 Labyrinth cover121 Set screw122 O-ring123 Grease nipple




31 Bearing32 Retaining ring33 Retaining ring36 Hexagon socket screw37 Hexagon socket screw38 Hexagon socket screw43 Hexagon socket screw44 Hexagon socket screw45 Hexagon socket screw50 Waved spring washer52 Magnetic oil plug53 Distance washer66 Waved spring washer72 Taper grooved pin73 Set screw75 Gasket76 Gasket77 Gasket78 Gasket85 Intermediate flange for brake

assembly90 Backstop91 Electromagnetic brake


10 Input wheel11 Output pinion12 Gear box – cast iron13 Rear shaft14 Front shaft15 Stator complete15.1 Rotor16 Terminal box complete17 Nipple20 Cover rear side20.1 Cover with labyrinth groove21 Cover front side21.1 Cover with labyrinth groove23 Rear flange24 2 Dust lip seals26 Bearing27 Bearing28 Bearing30 Bearing

93 Retaining ring94 Hexagon head screw99 Waved spring washer

101 Key104 Distance washer120 Labyrinth cover121 Fixing bolt122 O-ring123 Grease nipple180 Intermediate pinion shaft181 Intermediate wheel182 Distance washer183 Distance washer184 Roller bearing185 Roller bearing186 Key187 Key188 Retaining ring190 Retaining ring191 Retaining ring194 Set screw196 Key197 Retaining ring




Motorized Pulley 400L, 400M & 400H, Ø 15.91 in. (404 mm)Sectional drawings

400L: TS9N & TS11NLabyrinth Option

400M - 400H: TS9N & TS11NLabyrinth Option

400M - 400H: TS10N & TS12NStainless Steel Option without Labyrinth

400M - 400H Backstop Option 400M - 400H Electromagnetic Brake Option

400L Electromagnetic Brake Option

400L Backstop Option


Limestone Quarry (Georgia—USA)Two 15.75” diameter 5.5 HP Motorized Pulleys were installed 1994 to auto-matically “choke feed” tertiary gyratory crushers, working in combinationwith variable frequency drives (VFD) and ultrasonic sensors. Each pulleydrives a 36” wide belt at a maximum speed of 120 FPM to transfer 4” minusproduct at 425 TPH.

Technical Precaution: When driving motorized pulley with VFD on 460 volt3 phase 60 Hz power supply, always restrict frequencies to allowable fre-quency spectrum of 12 to 66 Hz to avoid torque loss and heat build-up. Fil-ter VFD output if VFD is more than 30’ from motorized pulley to avoid reso-nance-induced voltage spikes.

Taconite Processing Plant (Minnesota—USA)Two limestone feeder belt drives beneath storage silo were converted from20-year-old DC motors to AC-powered motorized pulleys in 1995. An ABBVFD drives each 19.72” diameter 5.5 HP motorized pulley to a maximum of120 FPM. Conversion enabled plant operator to eliminate exposed motorsand gearboxes and replace SCRs, relays, and timer banks with VFDs incontrol panel.

Technical Precaution: When driving motorized pulley with VFD on 460 volt3 phase 60 Hz power supply, always restrict frequencies to allowable fre-quency spectrum of 12 to 66 Hz to avoid torque loss and heat build-up. Fil-ter VFD output if VFD is more than 30’ from motorized pulley to avoid reso-nance-induced voltage spikes.

Electric Power Plant (Connecticut—USA)Designed and built in 1989 by ABB, this refuse derived fuel (RDF) plant usestwo 12’ diameter trommels to separate light burnable trash from landfillmaterial. A 24.80” diameter 30 HP Motorized Pulley drives each steeplyinclined trommel feed conveyor at 300 FPM. Each 100’ long 48” wide feedbelt is fitted with cleats and sidewalls to elevate 250 TPH of refuse at 45ºinclination.

Technical Precaution: When using motorized pulley to drive a single direc-tion belt on an incline use built-in mechanical backstop to prevent materialfrom rolling downhill when belt stops.

Foundry for Railroad Truck Castings (Ohio—USA)Installed at first American Steel Foundries (now Alliance Castings Company)plant in 1980, this 15.75” diameter 10 HP motorized pulley transfers recy-cled foundry sand to mold area at 150 TPH. Conveyor makes 30 start/stopsper hour. Ambient environment is hot (>104º F) and contains a high per-centage of airborne abrasive particulate. Photo taken in 1993, after 13years of service.

Technical Precaution: When installing motorized pulley in hot environment(>104º F), specify optional Class H motor windings and synthetic oil. Con-tact Rulmeca if ambient temperature will exceed 120º F.

Motorized PulleysHopper Feeder Drives




It is important to notice the productdifferences and choose theappropriate pulley based onestimated belt tension (radial load.)See page 78. The actual radial loadmust be less than the maximumallowable radial load shown in thiscatalog.



L for Light duty500L is designed for tough andirregular operating conditions. 500Lis typically used in heavy mobilecrushing & screening applications aswell as in crushed stone, ore, cement,steel, and fertilizer handling. 500Luses motor and gearbox from 400M.Note that 500L outer dimensions donot match 500H (Former modelsTM500 and TM501).

M for Medium dutyA solid 3-stage gearbox enables the500M to provide low speed at hightorque and handle irregular loadingsin harsh operating conditions. 500Muses motor and gearbox from 400H.Note that 500M outer dimensions donot match 500H (Former modelsTM500 and TM501).H for Heavy duty500H has strongest internalcomponents in this diameter withgearbox, shaft, and bearingsdesigned for tough, irregular, andextreme operating conditions.


• Crowned mild steel 19.72” diametersteel shell painted yellow at a minimumthickness of 2.4 mils


• Mild steel shafts• Shaft sealing system - degree of pro-

tection IP66/67 (EN60034-5.) Seepage 88.

• Cast iron terminal box for painted yel-low at min.thickness of 2.4 mils




to filter the oil• Black painted mounting brackets

(KL60) for 500L and 500M available onrequest

• Yellow painted mounting brackets(AL65 & ALO65) included with 500H

• Oil change recommended every10,000 operational hours

• Minimum RL. Refer to pages 53 & 58• Maximum RL - Please inquire• Non standard RL’s available• To be used in horizontal positions ±5

degree only

Please note:


• Technical Precautions for Design,Installation, and Maintenance:pages 76-86

• Environmental Considerations:page 72




TS11 – (500L & 500M)• Painted mild steel shell at minimum

thickness of 4.7 mils• Stainless steel shafts – AISI 303/4

range• Painted cast iron end housings at mini-

mum thickness of 4.7 mils• Stainless steel bearing covers with

labyrinth grooves and grease nipples –AISI 304 range

• Zinc plated oil plugs each with magnet• Zinc plated exterior bolts • Shaft sealing system – degree of pro-


• Painted terminal box at minimum thick-ness of 4.7 mils

• Nickel plated mounting brackets areavailable

TS11 – (500H)• Painted mild steel shell at minimum

thickness of 4.7 mils• Painted cast iron end housings at mini-

mum thickness of 4.7 mils• Stainless steel covers with labyrinth

grooves – AISI 304 range• Nitrided shaft sleeves• Zinc-plated oil plugs - each with mag-

net• Zinc-plated exterior bolts • Shaft sealing system – degree of pro-

tection P66/67 (EN60034-5) See pg 88.• Painted terminal box at minimum thick-

ness of 4.7 mils• Nickel plated mounting brackets with

labyrinth grooves

TS12• As TS11, but without regreasable


Please note:

• FDA & USDA food grade recognized oiland grease are not included in TS11 &TS12, but available on request

Please specify required TS-numberwhen ordering Stainless Steeloptions.



Semi-rust-free option TS11 with regreasable labyrinth seals xSemi-rust-free option TS12 with standard seals xRegreasable labyrinth seals xDust explosion proof Motorized Pulleys - ATEX 95 - Zone 22 - for applications handling of dusty grain etc. According to European Directive 94/9/EC. xStandard black rubber lagging (See page 80.)

3/8” full smooth lagging - Hardness 60 ±5 Shore A o3/8” full diamond lagging - Hardness 60 ±5 Shore A o3/8” partial smooth lagging - Hardness 60 ±5 Shore A o

White smooth rubber lagging (FDA listed) - Oil, fat & grease resistant oSpecial lagging - e.g. hot vulcanized, partial, and ceramic (See page 80.) oInternal electromagnetic brake (not available in 500H) Min. RL increases by 3.94” for 500L and 500M x External brake shaft (for mechanical brake by others) Only available in 500H xMechanical backstop Min. RL = 29.53” for 500L x

Min. RL = 31.50” for 500M x Min. RL = 29.53” for 500H x

Insulation class F with standard oil: (allowable ambient temperature: -13°F/+104°F) Std.Insulation class H with synthetic oil: (allowable ambient temperature: -13°F/+120°F) xParallel shell xThermal protector Std.Voltage: Single voltage (460) stator (Y winding) wired for 460v/3ph/60 Hz at terminal box Std.IP66/67 Standard yellow powder coated cast iron terminal box Std.Special voltage motors xCSA approved motors x

x = Optional extraso = An option with certain limitations. Please refer to Technical precautions pages 76-86.Std. = Fitted as standard



Motorized Pulley with terminal box

Idler Pulley3

UT400M & UT400H

Motorized Pulley or Idler Pulley Standard terminal boxA B C D E F G H K L M N O

Model in in in in in in in in in in in in in

500L & 500M 19.72 19.57 1.97 2.36 7.64 1.77 0.91 0.98 1.97 3.94 1.44 – 6.14

UT400M & UT400H 15.91 15.91 1.97 2.36 6.61 1.77 0.79 0.98 –

Motorized Pulley 500L & 500M, Ø 19.72 in. (501 mm)

ModelDin

Fin

Iin

Kin

Sin

Tin

Vin

W1in

Xin

X1in

Zin

Z1in lbs

500L, 500M,UT400M, &UT400H

Steel paintedKL60

6YA092.36 1.77 5.12 3.54 0.71 1.18 0.98 1.97 5.91 10.63 2.76 4.53 10.58Steel

Ni plated 6YA0D

MotorizedPulleys &Idlers


PartNumber

Dimensions Weight

1 A dimension is outer diameter of unlagged pulley shell at pulley centerline.2 B dimension is outer diameter of unlagged pulley shell at each end of shell.3 Idler pulley shown is non-crowned version.

Mounting bracket


Motorized Pulley 500L & 500M, Ø 19.72 in. (501 mm) 60 HzMotor

No.Gear

StagesModel


60 Hzfpm


60 Hzfpm

BeltPull2

lbs

Max.RadialLoad3

T1 + T2lbs

Min.RL

in


ofBracket

Power

HP

No.of


39.37”

3 8

3 500M486076

556780

169613801154

9487 25.59 - 593 610 628 645 663 680 697 715

SeeFoot-note4

KL606YA09

2 500L96

120150192240

102126151190247

905736616487375

7868 23.62 498 516 533 550 568 585 603 620 638

5.5 8

3 500M7696

120

80101126

209816631338

9487 25.59 - 613 630 647 665 682 699 717 735

2 500L

150192240300384480

151190247311383487

1119887681540439346

7868 23.62 518 535 553 570 588 605 623 640 657

7.5 4

3 500M120150192

134160202

172514421144

9487 25.59 - 593 610 628 645 663 680 697 715

2 500L

240300384480600768

251301379494622766

920770610468372302

7868 23.62 498 516 533 550 568 585 603 620 638

10

6 3 500M150192240

175221272

179514251157

9487 29.53 - - - 641 658 676 693 711 728

4 2 500L300384480600768

301379494622766

1049831639507411

7868 23.62 511 529 546 564 581 599 616 633 651

15 43 500M

240300384

251301379

184015381220

9487 29.53 - - - 667 685 702 720 737 755

2 500L480600768

494622766

936743604

7868 27.56 - - 573* 590 608 625 642 660 677

20 23 500M

300384480

321405527

196715601196

9487 29.53 - - - 667 685 702 720 737 755

2 500L 600768

601759

1049831 7868 27.56 - - 573* 590 608 625 642 660 677

Idler Pulley UT400M 9,100 23.62 271 286 304 319 334 345 360 376 391 SeeFoot-note4

KL606YA09

UT400H 11,250 25.59 - 295 315 330 345 356 371 387 402


2 Belt pull value allows for gearbox loss.3 Pulley must not be subjected to radial load exceeding “Maximum radial load” defined above. See “Belt Tension” section in Technical Precautions, page 78.4 Additional Motorized Pulley weight, specified per Roller Length: 39.37”< RL < 78.749” Wt = 8.7 lbs/in. Pulley weight: 39.37”< RL < 78.74” Wt = 7.6 lbs/in.5 All weights shown above are for pulleys “fully lagged” with 3/8” thick rubber. To calculate unlagged pulley weight subtract 0.9 lbs/in of Roller Length from above.*

Special “Short Roller Length” Option


31 Bearing32 Retaining ring 36 Hexagon socket screw37 Hexagon socket screw38 Hexagon socket screw43 Hexagon screw44 Hexagon screw45 Hexagon screw50 Waved spring washer51 Gasket52 Magnetic oil plug53 Distance washer66 Waved spring washer67 Waved spring washer70 Waved spring washer73 Set screw75 Gasket76 Gasket77 Gasket78 Gasket85 Intermediate flange 90 Backstop91 Electromagnetic brake93 Retaining ring


10 Input wheel11 Output pinion12 Gear box – cast aluminum13 Rear shaft14 Front shaft15 Stator complete15.1 Rotor16 Terminal box complete17 Nipple20 Cover – gear side20.1 Cover with labyrinth groove21 Cover – front side21.1 Cover with labyrinth groove 23 Rear flange24 2 Dust lip seals each side26 Bearing27 Bearing28 Bearing29 Bearing30 Bearing

94 Hexagon head screw99 Waved spring washer

101 Key104 Distance washer120 Labyrinth cover121 Fixing bolt122 O-ring123 Grease nipple180 Intermediate pinion shaft181 Intermediate pinion182 Distance washer183 Distance washer184 Roller bearing185 Roller bearing186 Key187 Key188 Retaining ring190 Retaining ring191 Retaining ring194 Set screw196 Key197 Retaining ring




29 Bearing 30 Bearing31 Bearing32 Retaining ring 36 Hexagon socket screw37 Hexagon socket screw38 Hexagon socket screw43 Hexagon head screw44 Hexagon head screw45 Hexagon head screw50 Waved spring washer51 Gasket52 Magnetic oil plug53 Distance washer66 Waved spring washer70 Waved spring washer73 Set screw75 Gasket

76 Gasket77 Gasket78 Gasket85 Intermediate flange 90 Backstop


10 Input wheel11 Output pinion12 Gear box – cast iron13 Rear shaft14 Front shaft15 Stator complete15.1 Rotor16 Terminal box complete17 Nipple20 Cover rear side20.1 Cover with labyrinth groove21 Cover front side21.1 Cover with labyrinth groove23 Rear flange24 2 Dust lip seals26 Bearing27 Bearing28 Bearing

91 Electromagnetic brake93 Retaining ring94 Hexagon head screw99 Waved spring washer

100 Key104 Distance washer120 Labyrinth cover121 Fixing bolt122 O-ring123 Grease nipple180 Intermediate pinion shaft181 Intermediate pinion182 Distance washer183 Distance washer184 Roller bearing185 Roller bearing186 Key187 Key188 Retaining ring191 Retaining ring194 Set screw196 Key197 Retaining ring




Intermediate Shaft

Backstop Option

Backstop Option with Labyrinth

500L & 500M

500L & 500M

500M

Electromagnetic Brake Option

Motorized Pulley 500L & 500M, Ø 19.72 in. (501 mm)Sectional drawings


1 A dimension is outer diameter of unlagged pulley shell at pulley centerline.2 B dimension is outer diameter of unlagged pulley shell at each end of shell.3 Idler pulley shown is non-crowned version.4 D dimension is shaft diameter.


Idler Pulley3

UT500H

Mounting bracket*

Motorized Pulley or Idler Pulley

Motorized Pulleys Material Bracket Dimensions Weight& Idler Pulleys Size* D I S V W W1 W2 X X1 Z Z1Model in in in in in in in in in in in lbs

500H & UT500H Cast iron AL65 / ALO65 2.56 4.53 0.91 1.34 1.85 3.54 2.36 7.09 9.45 3.15 5.55 17.64

A B C D4 E G L M O P

Model in in in in in in in in in in

500H 19.72 19.57 – 2.56 7.56 3.74 3.94 1.44 6.14 5.91

UT500H 19.72 19.72 – 2.56 9.25 3.74 – – – 5.91

Motorized Pulley 500H, Ø 19.72 in. (501 mm)

* Type AL bracket has gib key. Type ALO has no gib key. See position 69 on page 68.


Motorized Pulley 500H, Ø 19.72 in. (501 mm) 60 Hz(Design based on former TM500 /TM501)

MotorNo.

GearStages

Model


60 Hzfpm


60 Hzfpm

BeltPull2

lbs

Max.RadialLoad3

T1 + T2lbs

Min.RL

in


ofBracket

Power

HP

No.of


45.28

7.5

8 2 500H120150192

126161211

183914421097

10,340 29.53

775 797 819 839 861 878 897 916 936

SeeFoot-note4

AL65&ALO65

6 2 500H240300384480600

281313390476626

823739592486369

10

8 2 500H120150192

126161211

250919661496

797 819 841 861 883 898 917 936 9566 2 500H

240300384480600

281313390476626

11221007807662504

15 6 2 500H

192240300384480600

214281313390476626

2163164514771185970739

819 841 863 883 905 920 939 958 978

20 4 2 500H

240300384480600768

251321421469585715

25091966149613431077882

844 863 881 900 918 940 959 978 999

25 4 2 500H300384480600768

321421469585715

24251845165613281089

866 885 903 922 940 962 981 1000 1020

30 2 2 500H480600768

502642843

183914421097

866 885 903 922 940 959 978 997 1017

Idler Pulley Model UT500H 10,340 23.62 495 515 537 556 578 600 619 638 658SeeFoot-note4

AL65 &ALO65


2 Belt pull value allows for gearbox loss.3 Pulley must not be subjected to radial load exceeding “Maximum radial load” defined above. See “Belt Tension” section in Technical Precautions, page 78.4 Additional Motorized Pulley and Idler weight, specified per Roller Length: 45.28”< RL < 78.74” Wt = 9.8 lbs/in.5 All weights shown above are for pulleys “fully lagged” with 3/8” thick rubber. For “partially lagged” pulleys add 6% to 10% to the weights shown above. See

page 80 for “partial lagging.” To calculate unlagged pulley weight subtract 0.9 lbs/in of Roller Length from above.

For Motorized Pulley 500H spare parts list & sectional drawings see pgs 68-69.


FAM Excavator (Marl Pit in South Carolina—USA)FAM designed and built this 1,000 TPH excavator for an internationalcement producer in 2002. The 50’ long boom conveyor and 100’ long dis-charge conveyor each use a 31.5” diameter 100 HP Motorized Pulley todrive a 54” wide belt at 600 FPM. FAM has been using Rulmeca MotorizedPulleys as excavator belt drives for more than 30 years. Photo was takenduring machine commissioning.

Technical Precaution: When using a motorized pulley on an articulatingconveyor that inclines up and down use a brake to prevent material fromrolling “downhill” when conveyor stops. External brake shaft option is avail-able from Rulmeca.

Mechanical Excavator Reclaimer (Allouez Dock—Superior, Wisconsin)Photo shows one of three 40 year old bucket wheel reclaimers upgraded atrail to ship transfer facility by BNSF. In 2004 tandem 120 HP RulmecaMotorized Pulleys (in a “Nested Dual Drive”) replaced original 200 HP tailconveyor drive and a single 120 HP Motorized Pulley replaced originalboom conveyor drive on machine shown. Only minor structural modifica-tions were required. On-board diesel engines were also replaced duringupgrade to provide 460V/3ph/60 Hz power supply to Motorized Pulleys.Each of three bucket wheel reclaimers now handles 4,000 TPH of taconitepellets on 54” wide belts at a speed of 768 FPM.

Technical Precaution: When using labyrinth seals periodically purge greasethrough seals to prevent grease-born grit from attacking rubber oil seals.

DEMAG Reclaimer (Taconite Ship Loading Terminal in Michigan—USA)Demag designed and built this 5,000 TPH reclaimer in 1967. Terminal oper-ator replaced original motorized pulleys with 40” diameter Rulmeca Motor-ized Pulleys in 1985. A 150 HP Motorized Pulley drives the 60’ long 72” wideboom belt at 600 FPM. A 200 HP motorized pulley drives the 75’ long 72”wide discharge conveyor at 600 FPM. Since the 1985 conversion RulmecaMotorized Pulleys have moved more than 150 million tons of taconite pelletsthrough the reclaimer.

Technical Note: Rulmeca supplies parts and service for 40” diameter Motor-ized Pulleys up to 200 HP. However, the current portfolio does not includethis model. Research and development aimed at producing Motorized Pul-leys more powerful than 180 HP is currently underway.

German Reclaimer (Taconite Mine in Vitoria—Brazil)Brazilian taconite processing plant operator replaced the 1963-vintagemotorized pulleys on boom and discharge conveyor belts with new Rulme-ca 31.5” diameter 100 HP Motorized Pulleys in 2001. Because of the abra-sive nature of taconite ore dust, the operator used labyrinth seal option tomaximize oil seal life.

Technical Precaution: When using labyrinth seals periodically purge greasethrough seals to prevent grease-born grit from attacking rubber oil seals.

Motorized PulleysBucket Wheel Excavators & Reclaimers


Motorized Pulley 630M & 630H, Ø 24.80 in. (630 mm)Our 24.80” diameter Motorized Pulleyrange offers two differentperformance levels for BULKapplications:





M for Medium dutyA solid 2-stage gearbox enables the630M to handle irregular loadings inharsh operating conditions. 630Muses motor and gearbox from 500H.Note that 630M outer dimensions donot match 630HH for Heavy duty630H has stronger internalcomponents with gearbox, shaft, andbearings designed for tough,irregular, and extreme operatingconditions.










to filter the oil• Yellow painted mounting brackets (AL

& ALO) included with pulley• Oil change recommended every

10,000 operational hours• Minimum RL. Refer to pages 63• Maximum RL - Please inquire• Non standard RL’s available• To be used in horizontal positions ±5

degree only

Please note:







TS11• Painted mild steel shell at minimum



labyrinth grooves – AISI 304 range• Nitrided shaft sleeves• Zinc-plated oil plugs - each with mag-




labyrinth grooves



Please note:

• FDA & USDA food grade recognized oiland grease are not included in TS11 &TS12, but available on request.

Please specify required TS numberwhen ordering Stainless Steeloptions.



x = Optional extraso = An option with certain limitations. Please refer to Technical precautions pages 76-86!Std. = Fitted as standard




White smooth rubber lagging (FDA listed) - Oil, fat & grease resistant oSpecial lagging - e.g. hot vulcanized, partial, and ceramic (See page 80.) oExternal brake shaft (for mechanical brake by others) xMechanical backstop Min. RL = 29.53” for 630M x

Min. RL = 37.40” for 630H xInsulation class F with standard oil: (allowable ambient temperature: -13°F/+104°F) Std.Insulation class H with synthetic oil: (allowable ambient temperature: -13°F/+120°F) xParallel shell xThermal protector Std.Voltage: Single voltage (460) stator (Y winding) wired for 460v/3ph/60 Hz at terminal box Std.IP66/67 Standard yellow powder coated cast iron terminal box Std.Special voltage motors xCSA approved motors x



Idler Pulley3

UT500H / UT502H

Mounting brackets*

Motorized Pulleys or Idler Pulleys


630M & UT500H Cast iron AL65 / ALO65 2.56 4.53 0.91 1.34 1.85 3.54 2.36 7.09 9.45 3.15 5.55 17.64630H & UT502H Cast steel AL90 / ALO90 3.54 6.30 1.02 1.65 2.40 4.61 3.15 9.84 12.60 3.94 7.20 41.89

A B C D4 E G L M O PModel in in in in in in in in in in

630M 24.80 24.65 - 2.56 7.56 3.74 3.94 1.42 6.14 5.91630H 24.80 24.65 - 3.54 10.55 3.46 6.50 2.13 9.06 5.91UT500H 19.72 19.72 - 2.56 9.25 3.74 - - - 5.91UT502H 19.72 19.72 - 3.54 8.90 3.35 - - - 5.91






2 Belt pull value allows for gearbox loss.3 Pulley must not be subjected to radial load exceeding “Maximum radial load” defined above. See “Belt Tension” section in Technical Precautions, page 78.4 Additional Motorized Pulley and Idler weight: Model 630M: 45.28”< RL < 78.74” Wt = 11.2 lbs/in; Model 630H: 51.18”< RL < 78.74” Wt = 15.8 lbs/in.5 All weights shown above are for pulleys “fully lagged” with 3/8” thick rubber. For model 630H “partially lagged” pulleys add 4% to 7% to the weights shown

above. See page 80 for “partial lagging.” To calculate unlagged pulley weight subtract 1.2 lbs/in of Roller Length from above.

63


No.Gear

StagesModel


60 Hzfpm


60 Hzfpm

BeltPull2

lbs

Max.RadialLoad3

T1 + T2lbs

Min.RL

in


ofBracket

Power

HP

No.of


45.28

7.5

8 2 630M150192240

157200267

14731155866

10,300 29.53

907 929 951 972 994 1019 1041 1064 1086

SeeNote4

AL65 &ALO65

6 2 630M300384480600768

351390487594782

659591475388296

10

8 2 630M150192240

157200267

200915741181

927 949 970 992 1014 1039 1061 1084 11066 2 630M

300384480600768

351390487594782

899807647530404

15 6 2 630M

240300384480600768

267351390487594782

173313181183949777591

960 982 1006 1027 1049 1074 1096 1119 1141

20 4 2 630M

300384480600768

313401526586730

2003157411991075863

984 1006 1030 1052 1074 1099 1120 1143 1165

25 4 2 630M384480600768

400526586730

1959147813271064

1006 1028 1052 1074 1096 1121 1142 1165 1187

30 2 2 630M 600768

627800

14731155 1006 1028 1052 1074 1096 1121 1142 1165 1187

MotorNo.

GearStages

Model


60 Hzfpm


60 Hzfpm

BeltPull2

lbs

Max.RadialLoad3

T1 + T2lbs

Min.RL

in


ofBracket

Power

HP

No.of

Poles 37.40 39.37 41.34 43.31 45.28 47.24 49.21 51.18longerthan

51.18

30 8 2 630H

240300384480600768

247314408492639783

374529462268187914491182

16,600 37.40 1819 1850 1879 1910 1939 1963 1995 2025

SeeNote4

AL90 &ALO90

40 8 2 630H

240300384480600768

247314408492639783

510740183093256319751611

22,000 37.40 1863 1894 1923 1955 1983 2007 2039 2069

50 6 2 630H300384480600768

330418544656851

47233717286123701828

22,000 37.40 1863 1894 1923 1955 1983 2007 2039 2069

61 4 2 630H480600768960

493627815984

3830301323211922

19,900 37.40 1907 1939 1967 1999 2027 2051 2083 2114

75 4 2 630H600768960

627815984

368328362349

19,900 37.40 1907 1919 1967 1999 2027 2051 2083 2114

Idler Pulley Model UT500H 10,300 29.53 578 600 638 658 677 697 716 735See

Note4AL65 &ALO65

Model UT502H 22,000 29.53 669 691 711 733 753 775 797 818


Our 31.50” diameter Motorized Pulleyrange offers two differentperformance levels for BULKapplications:




If the 800M is not strong enough toresist estimated belt tension, thenselect 800H.

M for Medium dutyA solid 2-stage gearbox enables the800M to handle irregular loadings inharsh operating conditions. 800Muses motor and gearbox from 630H.Note that 800M outer dimensions donot match 800HH for Heavy duty800H has stronger internalcomponents with gearbox, shaft, andbearings designed for tough,irregular, and extreme operatingconditions.










to filter the oil• Yellow painted mounting brackets (AL

& ALO) included with pulley• Oil change recommended every

10,000 operational hours• Minimum RL. Refer to pages 67• Maximum RL - Please inquire• Non standard RL’s available• To be used in horizontal positions ±5

degree only

Please note:







TS11• Painted mild steel shell at minimum



labyrinth grooves – AISI 304 range• Nitrided shaft sleeves• Zinc-plated oil plugs - each with mag-




labyrinth grooves



Please note:

• FDA & USDA food grade recognized oiland grease are not included in TS11 &TS12, but available on request.

Please specify required TS numberwhen ordering Stainless Steeloptions.




x = Optional extraso = An option with certain limitations. Please refer to Technical precautions pages 76-86Std. = Fitted as standard




White smooth rubber lagging (FDA listed) - Oil, fat & grease resistant oSpecial lagging - e.g. hot vulcanized, partial, and ceramic (See page 80.) oExternal brake shaft (for mechanical brake by others) xMechanical backstop Min. RL = 37.40” for 800M x

Min. RL = 45.28” for 800H < 100 HP x Min. RL = 55.12” for 800H > 100 HP x

Insulation class F with standard oil: (allowable ambient temperature: -13°F/+104°F) Std.Insulation class H with synthetic oil: (allowable ambient temperature: -13°F/+120°F) xParallel shell xThermal protector Std.Voltage: Single voltage (460) stator (Y winding) wired for 460v/3ph/60 Hz at terminal box Std.IP66/67 Standard yellow powder coated cast iron terminal box Std.Special voltage motors xCSA approved motors x



Idler Pulley3

UT630M / UT630H

Motorized Pulleys or Idler Pulleys


800M & UT630M Cast steel AL90/ALO90 3.54 6.30 1.02 1.65 2.40 4.61 3.15 9.84 12.60 3.94 7.20 41.89800H & UT630H Cast steel AL120/ALO120 4.72 7.87 1.30 1.97 3.74 6.30 4.72 11.81 14.57 4.33 8.39 83.78

A B C D4 E G L M O PModel in in in in in in in in in in

800M 31.50 31.34 - 3.54 10.55 3.46 6.50 2.13 9.06 5.91800H 31.50 31.34 - 4.72 12.99 3.15 7.87 2.44 10.24 5.91UT630M 24.80 24.80 - 3.54 8.90 3.35 - - - 5.91UT630H 24.80 24.80 - 4.72 12.99 2.95 - - - 5.91




Mounting brackets*



2 Belt pull value allows for gearbox loss.3 Pulley must not be subjected to radial load exceeding “Maximum radial load” defined above. See “Belt Tension” section in Technical Precautions, page 78.4 Additional Motorized Pulley weight: Model 800M: 53.15”< RL < 78.74” Wt = 16.1 lbs/in; Model 800H & 800HD: 66.93”< RL < 78.74” Wt = 31.5 lbs/in.

Additional Idler Pulley weight: Model UT630M: 53.15”< RL < 78.74” Wt = 11.2 lbs/in; Model UT630H: 66.93”< RL < 78.74” Wt = 18.0 lbs/in.5 All weights shown above are for pulleys “fully lagged” with 3/8” thick rubber. For “partially lagged” model 800M pulleys add 5% to 8% (for 800H pulleys add 3%

to 4%) to the weights shown above. See page 80 for “partial lagging.” To calculate unlagged pulley weight subtract 0.9 lbs/in of Roller Length from above.

* Special “Short Roller Length” Option.** Available September 2007.

67

Motorized Pulley 800M, 800H, 800HD, Ø 31.50 in. (800 mm) 60 HzMotor

No.Gear

StagesModel


60 Hzfpm


60 Hzfpm

BeltPull2

lbs

Max.RadialLoad3

T1 + T2lbs

Min.RL

in


ofBracket

Power

HP

No.of


53.15

30 8 2 800M300384480600768

312396515621806

29662333179714891148

16,500 37.40 2118 2150 2179 2211 2241 2266 2291 2323 2354

SeeNote4

AL90 &ALO90

40 8 2 800M300384480600768

312396515621806

40453182245120301565

22,000 37.40 2207 2239 2268 2300 2329 2354 2379 2411 2443

50 6 2 800M384480600768960

416528686828

1075

37412944226718771448

22,000 37.40 2207 2239 2268 2300 2329 2354 2379 2411 2443

61 4 2 800M600768960

614786983

303423861838

19,900 37.40 2251 2282 2312 2343 2373 2398 2423 2455 2486

Idler PulleyModel UT630M 22,000 29.53 765 788 810 832 852 874 897 919 941 See

Note4AL90 &ALO90Model UT630H 45,000 45.28 1608 1643 1678 1713 1749 1784 1819 1854 1889

MotorNo.

GearStages

Model


60 Hzfpm


60 Hzfpm

BeltPull2

lbs

Max.RadialLoad3

T1 + T2lbs

Min.RL

in


ofBracket

Power

HP

No.of


70.87

75

** 3 800HD192240300

** ** ** 51.18* * * * ** ** ** ** ** **

SeeNote4

AL90 &ALO90

8 2 800H 384 380 6087

45,000

55.12

4823 4881 4939 4997 5055 5114 5172 5230 52886 2 800H480600768960

1064

507617740879

1036

45653749312426302231

45.28

100

8 3 800HD 240 ** ** ** 61.02 - - - ** ** ** ** ** **6 300 ** ** 51.18* * * * ** ** ** ** ** **8 2 800H 384 380 8300

45,000

55.12

4823 4881 4939 4997 5055 5114 5172 5230 52886 2 800H480600768960

1064

507617740879

1036

62265111426035873043

45.28

122

** 3 800HD 300384 ** ** ** 61.02 - - - ** ** ** ** ** **

6 2 800H480600768960

1064

507617740879

1036

74706134511143053651

45,000 55.12 4933 4991 5049 5108 5166 5224 5282 5340 5398

150** 3 800HD

384480600

** ** ** 61.02 - - - ** ** ** ** ** **

4 2 800H768960

1064

7609261111

608749984165

40,500 55.12 4878 4936 4994 5052 5111 5169 5227 5285 5343

180** 3 800HD 480

600** ** ** 61.02 - - - ** ** ** ** ** **

4 2 800H768960

1064

7609261111

730459974998

40,500 55.12 4966 5024 5062 5141 5199 5257 5315 5373 5431


Motorized Pulley 500H – 800H, Ø19.72 - 31.50 in. Spare parts list and sectional drawings

1 Shell4 End housing with geared rim6 Distance washer (633H/800H)8 Geared rim9 Rotor pinion

10 Input wheel11 Output pinion12 Gear box including rear shaft13 Rear shaft14 Front shaft15 Stator complete15.1 Rotor16 Terminal box complete17 Nipple (for 500H/630M only)18 Mounting brackets rear side18.1 Mounting bracket with labyrinth –

rear side19 Mounting bracket front side19.1 Mounting brackets with labyrinth

– front side20 Cover – gear side20.1 Cover with labyrinth groove21 Cover – front side22.1 Cover with labyrinth groove

23 Rear flange24 2 Dust lip seals each side26 Bearing27 Bearing30 Bearing31 Bearing32 Retaining ring33 Retaining ring34 Retaining ring35 Retaining ring37 Hexagon socket screw38 Hexagon socket screw42 Hexagon head screw44 Hexagon head screw45 Hexagon head screw47 Hexagon head screw50 Washer51 Gasket52 Magnetic oil plug58 Spring washer68 Key69 Gib key70 Waved spring washer72 Grooved pin73 Set screw

75 Gasket76 Gasket77 Gasket78 Gasket79 Holding plate85 Motor flange for backstop/brake 90 Backstop90.1 Backstop housing90.2 Backstop cover93 Retaining ring94 Hexagon head screw99 Spring washer

101 Key123 Grease nipple130 Brake shaft131 Mounting bracket bearing cover132 Roller bearing133 Brake shaft seal134 Brake shaft seal135 Retaining ring136 Bolts - bearing cover137 Spring lock washer138 Key139 Retaining ring140 Key

Backstop Option

Brake Shaft Option forexternal brake (by others)



Motorized Pulley 500H – 800H, Ø19.72 - 31.50 in. Sectional drawings

Backstop Option

Labyrinth Option

Valid for 800M & 800H


Motorized PulleysMechanical Backstops

Sand and Gravel Pit (Texas—USA)Installed in 1994 this 12.64” diameter 7.5 HP Motorized Pulley drives the 24”wide inclined “overs belt” at 300 FPM. This conveyor stacks large unusablerocks scalped from the product stream by the primary screen at the activeface in the pit. The Motorized Pulley’s built-in mechanical backstop protectspersonnel and equipment from product “roll back” when it is necessary tostop a fully loaded belt.

Technical Precaution: It is essential that the identity of each of the three phas-es of the power supply be determined before attaching power supply wires tothe pulley to prevent the motor from driving against the backstop. The identi-ty of each of the three phases of the motor is clearly labeled.

Granite Quarry (Virginia—USA)A 20 HP 15.75” diameter Motorized Pulley elevates crushed rock 25 feet at384 FPM on the 30” wide fixed transfer conveyor at this plant (center ofphoto.) A “clockwise backstop” prevents run back of the loaded belt beltwhen power supply is off.

Technical Precaution: Direction of proper pulley rotation is indicated by analuminum arrow or plastic sticker fastened to the end housing on the terminalbox (or power cord) side of the pulley. Clockwise and counterclockwise back-stops are available. Pulley rotation is specified from the point of view of aperson looking at the pulley from the terminal box (or power cord) side of thepulley. Rotation direction is to be specified when placing order

Mechanical Backstop and Rear Flange DesignDrawing shows Motorized Pulley mechanical backstop (for models 400M -500M) keyed to motor rotor shaft and bolted to motor stator frame. Note thatmechanical backstop option requires an extended rear flange (and largerminimum Roller Length) for certain models.

Models 138E - 320L use a one-way motor rotor bearing in a standard motorstator and do not require an extended rear flange. Models 320M - 500M adda backstop to the stator within an extended rear flange, as shown. Models500H - 800H add a backstop to the stator within a standard rear flange.

Mechanical Backstop Exploded ViewRulmeca’s mechanical backstops are built into the Motorized Pulley to limitpulley rotation to one direction (either clockwise or counterclockwise.) Thebackstop’s keyed inner race is fixed to the motor rotor and the outer race isbolted to the motor stator frame.

Fixing the backstop to the motor rotor shaft, on the input side of the internalgearbox, yields two advantages: (1.) the backstop has all of the mechanicaladvantage, which can be as high as 100:1, and (2.) it is protected in a her-metically sealed environment. On the other hand, an exposed backstopcoupled to a live pulley shaft has no mechanical advantage (and must bemuch larger) and is exposed to the environment.


Marl Pit at Cement Plant (South Carolina—USA)Installed by FAM in 2002, this crawler-mounted bucket wheel machine exca-vates marl at a rate of 1,000 TPH. It uses tail-mounted 31.5” diameter 100HP Motorized Pulleys to drive the 54” wide boom and tail conveyor belts at600 fpm. FAM specified Rulmeca Motorized Pulleys with “external brakeshaft option” because both conveyors can articulate +/- 16º and mechanicalbackstops could not be used..” Externally mounted brakes (by others) pre-vent material from “rolling backwards”when conveyors are stopped.

Technical Precaution: Control circuit must be designed so that motor andbrake never work against each other. Brake should never be clamped shutwhen motor is on except for “emergency stop.” Motor should never be pow-ered on (including “jog” command) when the brake is clamped shut.

Rulmeca Internal BrakeRulmeca internal brake is designed to function primarily as a belt holdingdevice for reversing and/or articulating conveyors. The brake is not intend-ed to be a conveyor stopping device. The brake’s keyed spline is fixed tothe motor rotor and the brake’s housing is bolted to the motor stator frame.

Fixing the brake to the motor rotor shaft, on the input side of the internalgearbox, yields two advantages: (1.) the brake has all of the mechanicaladvantage, which can be as high as 100:1, and (2.) it is protected in a her-metically sealed environment.

Rulmeca Internal Brake/Motor/Gearbox AssemblySpring-loaded electromagnetic brakes are designed to release when power isapplied to the brake coil. This is a “fail safe” feature. They clamp shut whenbrake power is removed (either during normal operation or during an emer-gency loss of overall system power.) Photo shows 320H model. Note that thisoption requires additional internal space and larger minimum Roller Length.

Technical Precaution: Control circuit for motor and brake must be designed tostop pulley motor before brake clamps shut and start pulley motor after brakeis released. Brakes are DC-powered and supplied with AC to DC rectifiers tobe mounted in a remote panel (by others). Control circuit must be designedto kill motor power in the event of loss of brake power. If this provision is notmade, motor can possibly “power through” clamped brake.

Example of External Brake (South Carolina—USA)Available in models 500H and larger, Rulmeca external brake shaft optionextends motor rotor shaft through hole in non-rotating pulley shaft for attach-ment of external brake (by others.) This hydraulically-actuated double-shoebrake (protective cover removed for photograph) prevents conveyor rollback when fully loaded belt is stopped.

The external brake option provides one of the two key advantages availablewith the internal brake option. Brake has all of the mechanical advantage ofthe drive (as high as 100:1 ratio) because it is fixed directly to the motor rotorshaft. It is, however, exposed to the environment.

Motorized PulleysInternal and External Brakes


higher ambient temperature conditionscontact Rulmeca. See page 77, 78, & 91.

High Duty Cycle (FrequentStart/ Stops)

Standard Rulmeca Motorized Pulleys aresuitable for frequent starting and stop-ping, without the use of soft start devices,as shown above. More frequentstarts/stops are possible through the useof optional special pulley constructionand/or soft starters. Contact Rulmeca fordetails. See page 79.

Impact LoadingConveyors subject to frequent impactloading (i.e. non-continuous materialflow) may require higher motor power andstronger gearbox than indicated by “con-tinuous flow” belt pull calculations. Con-tact Rulmeca. See page 78, 82, & 83.

Indexing (Induction) Conveyors

Electromagnetic brake provides excellentproduct “hold” capability in induction sys-tems requiring “indexing.” See page 79.

72

Applications in Special Environmental ConditionsAbrasive, Wet, High HumidityEnvironments

Hermetically sealed carbon steel tubeand end housings with standard paint aresuitable for most bulk applications. How-ever, aggressive environments mayrequire regreasable seals, special finish,or stainless steel. See pages 83 - 85.

Articulating Conveyors Electromagnetic brakes or external brakeshafts for brakes (by others) provide suit-able material “holdback” capability forarticulating conveyors. Mechanical back-stops will not work in this applicationbecause these conveyors elevate andlower material. See pages 70, 71, 79 &81.

Chemical/Corrosive Environ-mentsaggressive environments may requireregreasable seals, special lagging mate-rial, special finish, or stainless steel. Seepages 80, 81, and 83 - 85.

Critical Speed RequirementsActual belt speed is a function of motorpole number, gear ratio, and load. Thiscatalog displays actual full load belt speedof an unlagged Motorized Pulley at nomi-nal voltage and 60 Hz to assist designerswho need precise belt speeds. See page77.

Dust & Gas EnvironmentsRulmeca Motorized Pulleys with IP67sealing are available with optional certifi-cation for service in an ATEX 95 Class II(“dust explosion proof”) Zone 22 atmos-

phere, according to European UnionDirective 94/9EC article 8. Note that Rul-meca Motorized Pulleys are not “intrinsi-cally safe” or “flame proof” and are notsuitable for service in: Class I (gasses,vapors, & liquids), Class II Zone 20, orClass II Zone 21 environments. ContactRulmeca for additional details.

Elevating ConveyorsMechanical backstops provide suitablematerial “holdback” capability for fixedposition, non-reversing, inclined convey-ors. See pages 70 & 81.

Food Handling

Regreasable seals, full stainless steel,and food grade oil, grease, and laggingmaterial are suitable for this environment,which usually includes frequent highpressure/chemical wash down. Seepages 80, 84, & 85.

High Altitude >3,300 ft AboveSea Level (ASL)Standard Rulmeca Motorized Pulleysprovide suitable performance in moun-tainous areas. When specifying motorpower derate by 2.5% for elevations of3,300-5,000’ ASL and 5% for elevationsof 5,000-6,600’ ASL. Contact Rulmecafor assistance with higher elevations.

High Ambient TemperatureStandard Rulmeca Motorized Pulleyswith Class F motor and standard oil aresuitable for use in a maximum ambienttemperature of 104 oF. Optional Motor-ized Pulleys with Class H motor and syn-thetic oil are suitable for use in a maxi-mum ambient temperature of 120 oF. For

Model Max. No. of Start/stops

138E 240 per hour165E 180 per hour220M & 220H 120 per hour320L, 320M & 320H,400L, 400M & 400H 25 per hour500L, 500M, 500H, 630M & 630H,800M & 800H 10 per hour


Non-belt ApplicationsSpecial Motorized Pulley designs areavailable for “non-belt, V-belt, partialbelt, and modular belt” applications. It isessential that each special applicationbe designed to adequately dissipateheat from the pulley surface. ContactRulmeca for assistance with these appli-cations. See pages 77, 78, & 83.

Non-horizontal Mounting (i.e.between 5° - 90° and Vertical)

Certain applications (e.g. self-cleaningelectromagnet for tramp iron, picturedabove, “tilted” package sortation convey-ors, and “travelling wall”) require pulleyshaft to be mounted out of the horizontalplane. This Motorized Pulley optionrequires extra oil, grease packed topbearing, and special electrical termina-tion. Contact Rulmeca for assistance.see pages 82, 83, and 91.

Oily, Greasy, & Fatty Materials

Environments with high amounts oil,grease, and/or fat require special oil-resistant lagging. If they require frequenthigh pressure and/or chemical cleaningthey may also require regreasable sealsand stainless steel or special surfacecoating. See pages 80, 84, & 85.

Reversible ConveyorsAll standard three-phase Rulmeca Motor-ized Pulleys are suitable for use in revers-ing conveyors. However, motor controlcircuit must be designed to bring pulley toa complete stop before reversing direc-tion. See pages 84 & 85.

Starting Under LoadAll Rulmeca Motorized Pulley motors are“Design C” and developed for direct start-ing. They provide 200% start-up torquewhen started directly. To reduce inrush(start-up) current it is possible to usestarting device such as soft starter or vari-able frequency drive. Note that thesedevices typically reduce start-up torque to150% of running torque. See pages 81 &86.

Underground Tunneling & Min-ing Applications

Rulmeca Motorized Pulleys have beenincorporated into Tunnel BoringMachines (pictured above) for years.However, they are not “intrinsically safe”or “flame proof” and are not suitable forservice where explosive gasses, vapors,liquids, or dust are continuously present.Contact Rulmeca for additional details.

Underwater applicationsThe Rulmeca Motorized Pulley IP67 seal-ing system has been successfully testedfor 30 minutes under 1 m of water. How-ever, the motor is not intended for contin-uous underwater service.

Variable Speed ConveyorTwo speed motor. AC frequency convert-er.

73

Low Ambient TemperatureRulmeca Motorized Pulleys with standardmotor and oil are suitable for use in aminimum ambient temperature of -13°F.Optional food grade oil lowers the pulleyoperating temperature range to a mini-mum of -22°F. Contact Rulmeca for loweroperating temperatures. Special oil, spe-cial seals, and internal anti-condensationheater may be required. See pages 77,78, & 91.

Marine Environment

Corrosive ocean environment oftenrequires regreasable sealing system,stainless steel or special surface finish.See pages 83 - 85.

Noise-Sensitive Environments

In noise-sensitive areas (e.g. locationswhere public access to conveyors is per-mitted) certain Motorized Pulley designrestrictions apply. Contact Rulmeca forspecial oil viscosities and quantities, spe-cially balanced pulleys, and when toavoid the use of 2 pole motors.

Applications in Special Environmental Conditions


IntroductionDesigners should use the following engi-neering principles in selecting the optimalbelt conveyor drive for bulk handlingapplications. Refer to the latest edition of“Belt Conveyors for Bulk Materials,” pub-lished by the Conveyor Equipment Manu-facturers Association (CEMA) for a com-prehensive design guide.

Design ParametersDetermine desired design parameters:• product flow rate (Q)• belt speed (V)• belt width (w)• conveyor length (L)• product size• lift height (H)• type & thickness of belt• type of belt support

Make the following control choices:• continuous or intermittent flow• fixed or variable belt speed• conveyor duty cycle• extremes of process flow• ambient environment extremes• applicable safety requirements

Optimize Belt Speed & BeltWidthSelect Belt Width:• with bulk density & belt speed fixed,

select width to yield product flow rate,not exceeding CEMA “standard edgedistance”

• width must be > 3x max lump for 20 o

surcharge and > 6x max lump for 30 o

surcharge • width must be wide enough to prevent

loading chute and skirtboard jamming(i.e. > 3x to 5x max lump)

Select Belt Speed:• with bulk density & width fixed, select

speed to yield product flow rate, notexceeding CEMA “standard edge dis-tance”

• for dusty material, select speed to min-imize fugitive emissions

• for heavy sharp material, select speedto protect belt and chute lining

Calculate Power to Drive BeltCEMA has empirically developed a vari-ety of factors to simply the determinationof belt pull. Some of these factorsinclude: idler roller bearing friction (Kx,)belt and load flexure resistance (Ky,) andskirtboard friction (Tsb.) To determinerequired HP calculate required belt pull atspecified belt speed as follows:• with belt width and speed fixed, select

conveyor components and calculatebelt tension (Te) required to overcomegravity, friction, and momentum using:Te = LKt (Kx + KyWb + 0.015Wb) + Wm (LKy + H) + Tp + Tam + Tac

• calculate power required to drive beltusing:HP = (TeV) / 33,000

Go to www.rulmecacorp.com for free“downloadable” conveyor design soft-ware incorporating equations above anda complete set of definitions for all perti-nent terminology.

Select Drive & Check GeometryFinally, select conveyor drive and checkdesign using final parameters as follows:• select Motorized Pulley to match

design belt speed and required HP• check selected pulley diameter verify-

ing that wrap factor and belt life areacceptable

• recalculate required belt pull and HPusing selected “actual belt speed”

• check material cross section on beltverifying that edge distance is accept-able

• check material trajectory verifying thattransfer chute will not plug and materi-al will drop at desired location

Go to www.rulmecacorp.com for free“downloadable” conveyor design soft-ware incorporating material cross sectionand trajectory plotting programs and pul-ley diameter check.

Special Loading ConditionsCertain loading are beyond the scope ofthe 5th Edition of the CEMA manual.

These include:• hopper feeder conveyors• slider bed conveyor supports• cleated and/or sidewall beltGo to www.rulmecacorp.com for free“downloadable” conveyor design soft-ware incorporating HP calculations forthese special conditions.

ExamplesThe drawings below were generated byRulmeca design software and illustratehow the programs can help designersavoid errors.

Trajectory plot shows that slower beltspeed (solid line) will not plug chute whilefaster belt speed (dotted line) will. This isbecause trajectory of center of materialmass impacts against vertical chute wallabove horizontal centerline of pulley.

Plot shows that selected belt speed (dot-ted line) may cause material spillagebecause cross section exceeds CEMArecommendation (solid line.)

74

Bulk Materials Handling Engineering Principles


Standard Loading Conditions:Conveyor Length (ft) ____Tonnage Rate (tph) ____Belt Speed (fpm) ____Material Lift Height (ft) ____Ambient Temperature (oF) Min ____Ambient Temperature (oF) Max ____Initial Velocity of Material (fpm) ____Number of Belt Cleaners ____Number of Belt Plows ____Length of Skirt Zone (ft) ____Depth of Material in Skirt Zone (in) ____Number of Non-driven Pulleys ____

Operating Conditions:Duty Cycle (Start/stops per hour) ____Hours of Operation (hrs/day) ____Days of Operation (days/week) ____Is this a reversing belt? ____Additional Comments: ______________________________________________________________________________________________________________

Special Loading Conditions:Hopper Feeder Parameters:Hopper Opening Width (in) ____Hopper Opening Length (in) ____

Slider Bed Parameters:Slider Bed Length (ft) ____

Sidewall & Cleated Belt Parameters:Sidewall & cleat height (in) ____Thickness of sidewall (in) ____Distance between cleats (in) ____Thickness of cleats (in) ____

Tripper Design Parameters:Tripper Length (ft) ____Tripper Material Lift Height (ft) ____Number of Tripper Belt Cleaners ____Tripper Skirt Zone Length (ft) ____Depth of Material in Skirt Zone (in) ____No. of Tripper Non-driven Pulleys ____

For free “downloadable”power calculation program,complete with definitions of allterminology, go to www.rulmecacorp.com.

75

APPLICATION WORKSHEET - BULK MATERIALS HANDLINGMotorized PulleysComplete this form and submit to Rulmeca for a power calculation and Motorized Pulley recommendation.

Contact Person ____________________________ Date ______________ Ref # ________________Company __________________________________________________________________________ Address ___________________________________________________________________________Phone _______________________ Fax ______________________ Email _____________________

Belt Width (in)

182430364248546066728496

Other_____

Elevation (ft)

3,3005,0006,600

CEMAType

ABCDE

TroughingIdler Spac-

ing (ft)3.03.54.04.55.0

Angle ofWrap (deg)

180200210220240360

Type of Lag-ging

FullPartialNone

Material (frictional coefficient)

ashes, coal, dry 0.0571bauxite, ground 0.1881cement, Portland, dry 0.2120cement clinker 0.1228clay, ceramic, dry fines 0.0924coal, bituminous mined 0.0754coke, ground fine 0.0452cullet (broken glass) 0.0836grains, wheat, corn, rye 0.0433gravel, bank run 0.1145iron ore, 200 lbs/cu ft 0.2760limestone, pulverized dry 0.1280phosphate rock, dry 0.1086salt, common, dry fine 0.0814sand, dry, bank 0.1378wood chips 0.0095

Material Bulk Density (pcf)

ashes, coal, wet 50bagasse 10bark, wood 20bauxite, ground, dry 68bauxite, crushed 85beans, navy, dry 48beets, whole 48borax, 3” & under 70cement, portland 99clay, ceramic, dry, fines, 80clay, dry, fines 120coal, bituminous 55coal, lignite 45coke, 45corn, ear, 56cullet, 120gravel, bank run, 100iron ore, 200iron ore pellets 130limestone, crushed 90paper pulp stock 60phosphate rock 85potash salts 80rock, crushed, 145rock, soft, 110rye, 46sale, common dry, fine, 80sand, bank, damp, 130sand, bank, dry, 110sand, foundry, 100sawdust 13sewage sludge, moist, 55soybeans, whole, 50sugar, raw, cane, 65taconite pellets 130traprock, 2-3” lumps, 110wheat, cracked, 45wood chips 30

Type ofTake-up

AutomaticManual

Slider Bed Material (frictional coefficient)

steel 0.90UHMW polyethylene 0.545urethane 0.88wood 1.00

Type of Belt

1 ply, 160 piw2 ply, 225 piw3 ply, 330 piw4 ply, 440 piw

Belt Carcass

fabricsteel cord

Idler RollDiam. (in)

3456


Technical Precautions for Design, Installation and MaintenanceThe precautions below will enable conveyor engineers, system integrators, and end users to properly design,install, operate, and maintain conveyor systems using Rulmeca Motorized Pulleys. Ignoring any of the pre-cautions may result in pulley damage and will void the product warranty. Precautions which could effect war-ranty coverage are marked with a warning symbol, as shown.

Use these technical precautions with the Rulmeca Bulk catalog entitled “Motorized Pulleys for belt conveyors”TC-101.

Contents Page

1 Actual Belt Speed vs. Nominal Belt Speed............................................................................................................. 772 Aftermarket Service................................................................................................................................................ 773 Ambient Temperature............................................................................................................................................. 774 Belt Alignment........................................................................................................................................................ 785 Belt Pull.................................................................................................................................................................. 786 Belt Tension............................................................................................................................................................ 787 Capacitors for Single Phase Motors....................................................................................................................... 788 Clearance............................................................................................................................................................... 789 Electrical Installation............................................................................................................................................... 79

10 Electromagnetic Brake........................................................................................................................................... 7911 High Duty Cycle...................................................................................................................................................... 7912 Lagging Limitations................................................................................................................................................ 8013 Lagging Specifications............................................................................................................................................ 8014 Mechanical Backstops............................................................................................................................................ 8115 Motor Current Overload and Overcurrent Protection............................................................................................. 8116 Motor Thermal Protection....................................................................................................................................... 8117 Motorized Pulley Mounting Orientation.................................................................................................................. 8218 Mounting Brackets.................................................................................................................................................. 8219 Non-belt, Partial Belt, Modular Belt........................................................................................................................ 8320 Oil and Oil Seal Maintenance................................................................................................................................. 8321 Pulley Diameter...................................................................................................................................................... 8422 Regreasable Labyrinth Seals................................................................................................................................. 8423 Repair and Mechanical Maintenance..................................................................................................................... 8424 Reversing Conveyors............................................................................................................................................. 8425 Surface Coating...................................................................................................................................................... 8526 Storage of Motorized Pulleys................................................................................................................................. 8527 Start-up................................................................................................................................................................... 8528 Terminal Box........................................................................................................................................................... 8529 Transport and Handling.......................................................................................................................................... 8630 Variable Frequency Drive....................................................................................................................................... 8631 International Protection (IP) Ratings...................................................................................................................... 8932 Oil Quantities.......................................................................................................................................................... 9033 Oil Specifications.................................................................................................................................................... 9134 Wiring Diagrams..................................................................................................................................................... 92-100


1) Actual Belt Speed vs. Nominal Belt Speed: • Two key specifications for each Motorized Pulley are power (HP) and nominal belt speed, as shown on indi-

vidual specification pages in this catalog.• Nominal belt speed is a design target, providing consistent choices among all models and powers. For exam-

ple, a nominal belt speed of 300 fpm is available in most pulley models.• Actual full load belt speed is almost never exactly equal to nominal belt speed. • Actual belt speed is a function of the motor pole number, gear ratio, and load. Therefore, this catalog displays

actual full load belt speed at 60 Hz, as well as nominal belt speed, to assist designers who need more precisebelt speeds.

• Note that all belt speeds shown in this catalogue refer to unlagged pulleys because: 1. Belt speed for each model is a function of pulley diameter, 2. Pulleys are available with and without lagging, 3. Lagging changes the pulley diameter, and4. Various lagging thicknesses are available.

• Note that each Rulmeca Motorized Pulley for a three-phase power supply uses an asynchronous squirrelcage induction motor with approximately 5% slip. In a no load condition, motor RPM is nearly equal to “syn-chronous speed” RPM. The slip rate is dependent on power and design of the motor. Low powered motorshave a lower slip rate than high-powered motors. At full load, the motor RPM is approximately 5% less thansynchronous.

• The “actual belt speed” displayed in this catalogue is based on an unlagged pulley running at full load, nom-inal voltage (e.g. 460 volts) and 60Hz.

• The actual full load belt speed of a lagged pulley running at 1. Full load, 2. Nominal voltage (e.g. 460 volts), 3. 60 Hz – equals the actual full load belt speed specified in this catalogue, times the ratio of the lagged/unlagged pulley

diameters. Example: A 320M Motorized Pulley (with an unlagged pulley diameter of 12.64”) at 5.5 HP and nominal belt

speed of 150 fpm has an actual belt speed of 157 fpm at full load, nominal voltage, and 60 Hz. Ifthis pulley is supplied with 1/4” thick lagging, the lagged pulley’s actual belt speed equals 157 fpmx (13.14”/12.64”) = 163 fpm at full load, nominal voltage, and 60 Hz.

• The maximum no load belt speed of this lagged pulley is 5% higher than the full load belt speed (i.e. no loadbelt speed = 163 fpm x 1.05 = 171 fpm.

2) Aftermarket Service• Always contact your local authorized Rulmeca service center or distributor for aftermarket service.• Or contact Rulmeca at www.rulmecacorp.com

3) Ambient Temperature:• Motorized Pulleys are normally cooled by dissipating heat through contact between the surface of the pul-

ley and the conveyor belt. It is essential that each pulley have an adequate thermal gradient between the pul-ley’s motor stator and its ambient operating temperature.

• All Motorized Pulleys in this catalog are designed and tested under full load (without rubber lagging) for use ina max. ambient temperature of +104o F with standard Class F motor. Motorized Pulleys with Class H motorsand synthetic oil are suitable for use in a max. ambient temperature of 120o F.

• For example, a conveyor belt in a facility with an air temperature of +75o F, carrying processed material at atemperature of +130 oF, will have a Motorized Pulley “ambient temperature” that is significantly higherthan +75o F. In this example, the actual temperature of the bottom of the belt in the vicinity of the Motor-ized Pulley will be less than or equal to the material temperature, depending upon parameters such asconveyor length, belt thickness, and belt speed.

• For ambient operating conditions lower or higher than allowable ambient temperature (-22o F to 120o F), con-tact Rulmeca.

• It is possible to use specially designed Motorized Pulleys to perform tasks other than driving standard rubberconveyor belt (e.g. modular plastic belts and v-belts for Motorized Pulley types 138E & 165E.) Please contact

Technical Precautions for Design, Installation and Maintenance


Rulmeca for such applications.• Operating Rulmeca Motorized Pulleys to drive standard conveyor belts outside of the allowable ambient tem-

perature range voids product warranty.

4) Belt Alignment:• Motorized Pulleys must be installed with pulley shaft perpendicular to belt centerline and parallel to all idler

rollers.• Belt centerline must be straight and parallel to side walls of slider bed (if any) and perpendicular to idler rollers

and all pulleys• Belt and/or roller misalignment may cause high friction and overload the conveyor belt drive motor.• Belt misalignment may cause premature wear of pulley lagging.

5) Belt Pull:• This catalog specifies “Actual Belt Pull” for each model, power, and speed of pulley. Note that the specified

actual belt pull allows for a motor and gearbox efficiency loss of 3 to 5%.• Always select the Motorized Pulley power by comparing calculated “Required Belt Pull (Te)” with “Actual Belt

Pull” as listed in this catalog and not simply on the basis of calculated power (HP).• Required Belt Pull is the sum of all forces required to convey material.

6) Belt Tension:• The conveyor belt should never be over-tensioned. It should only be installed with sufficient belt tension to

prevent belt slippage. • Anti-slip lagging should be used to keep the radial load as low as possible to drive the belt without slipping .• The maximum allowable radial load of each Motorized Pulley is specified in this catalog. Subjecting the Motor-

ized Pulley to a higher than specified maximum radial load may damage internal components and shortenproduct lifetime and, therefore, voids product warranty.

• To check pulley radial load, do a vector summation of the loads on the pulley.• For example, as shown in the diagram,

1. Radial load equals T1 + T2.2. T1, tight side tension, equals Belt Pull (Te) plus T2.3. T2, slack side tension, is determined using CEMA standard calculations or DIN 22101 to provide enough

friction between the pulley and the belt to drive the belt.• Belt type, belt thickness and minimum allowable pulley diameter must be selected according to Belt Supplier

Requirements.

7) Capacitors (for Single Phase Motors):• Each single phase Motorized Pulley requires an appropriate capacitor. For models 138E and 165E a “Run”

capacitor is supplied with the pulley. Detailed information is available upon request. Using other than thespecified Run capacitor may damage the motor and voids product warranty.

• The Run capacitor must be permanently connected to the motor, as shown in the connection diagrams.• Rulmeca single phase motors are “permanent split phase motors.” Each motor is supplied with two windings.

They are designed so that an appropriately sized capacitor connected to one of the windings will start themotor rotating.

• Starting torque is limited to 70% of full running torque.• It is possible to increase starting torque to 100% by adding a second appropriately sized capacitor (Start

capacitor) to the circuit. Note that this circuit must be designed to drop the starting capacitor out of the circuitafter the motor has reached its nominal speed. Contact Rulmeca for more information on how to run singlephase motors using Start and Run capacitors.

8) Clearance:• It is necessary to design conveyor frame and all chutes such that structure and/or product jamming against



the Motorized Pulley is avoided.• The “non-rotating shaft” feature of Motorized Pulleys offers a higher margin of safety than exposed drives with

rotating shafts However, Motorized Pulley end housings, lagging, or tube may be damaged if structure orproduct jams against pulley while it is rotating.

9) Electrical Installation:• The equipment manufacturer (OEM) must ensure that the Motorized Pulley is not put into operation before it

is – Correctly installed,– Correctly connected to the power supply,– Correctly protected.

• A specialist must perform the electrical connection of the Motorized Pulley in accordance with electrical regu-lations. If in doubt, contact Rulmeca.

• A wiring diagram is always supplied with the Motorized Pulley. Always refer to the connection instructions andensure that the motor power and control circuits are properly connected.

• A wiring diagram is inserted into the terminal box and into the booklet accompanying each Motorized Pulley. • Standard Rulmeca Motorized Pulleys are delivered with clockwise rotation when viewed from the terminal

box end of the Motorized Pulley.• Always refer to the connection instructions and ensure that the motor is connected as required to the cor-

rect power supply.• Connect system ground wire to grounding screw located in the terminal box.• When using cable options the green/yellow wire must be connected to the system ground wire.

10) Electromagnetic Brake:• The spring-loaded electromagnetic brake is intended for use as a conveyor belt holding device and not a con-

veyor belt stopping device.• The control circuit for the Motorized Pulley motor and brake must be designed to stop the pulley motor before

brake clamps shut and start the pulley motor after the brake is released.• Spring-loaded electromagnetic brakes are designed to release when power is applied to the brake coil. This

is a “fail safe” feature. They clamp shut when brake power is removed (either during normal operation or dur-ing an emergency loss of overall system power.)

• Control circuit must be designed so that motor and brake never work against each other. The brake shouldnever be clamped shut when the motor is on except for “emergency stop” condition. The motor should neverbe powered on (including “jog” command) when the brake is clamped shut.

• Electromagnetic brakes are DC-powered. They are supplied with AC to DC rectifiers to be mounted in aremote panel (by others). Rectifiers must be fuse-protected.

• Motor control circuit must be designed to kill motor power in the event of loss of brake power. If this safetyprovision is not made, it is possible for pulley motor to be “powered through” a clamped brake, burning brakeand/or motor.

• A wiring diagram is supplied with every Motorized Pulley. Always ensure that motor and brake power and con-trol circuits are connected according to instructions. Wiring diagrams are available separately, at any time,upon request.

• For rectifier connection and protection instructions, refer to rectifier data sheet supplied with Motorized Pulley.• Neglecting these instructions could cause damage to the motor and/or brake and voids product warranty.

11) High Duty Cycle:• Rulmeca Motorized Pulleys are designed to operate either continuously or intermittently. Page 72 gives

each standard model’s maximum allowable start/stop duty cycle for intermittent operation. OperatingMotorized Pulley above this maximum could cause motor and/or gearbox damage and voids product war-ranty.

• Optional Motorized Pulley designs are available to operate at higher duty cycles working with soft start devicesor appropriately programmed Variable Frequency Drives. Contact Rulmeca before designing a system tooperate at a duty cycle higher than specified in this catalog.

• Note that a conveyor control system that incorporates a “jog” command should be timed to restrict the num-ber of jogs to the maximum allowable start/stop duty cycle for each pulley model.



13) Lagging Specifications:• Smooth and diamond pattern lagging is available in black synthetic rubber and white synthetic rub-

ber. Approximate rubber hardness is 60 durometer +/- 5 (shore hardness A).• Standard lagging is cold-bonded to pulley shell. • Optional hot vulcanized lagging is available for high power/high torque/high temperature applications

and for Motorized Pulleys with Class H motors.• Oil & grease resistant synthetic rubber is also available for oily operating conditions and/or certain

types of belting material. Check with belting supplier if belt/lagging material compatibility could be aproblem.

• Adequate Motorized Pulley heat dissipation is necessary. Lagging thickness and width greatly effectpulley heat dissipation characteristics.

Motorized Pulley type /power

138E < 0.75 HP0.75 HP

ditto1 HP

ditto

165E < 1.5 HP1.5 & 2 HP1.5 & 2 HP220M & 220H< 3 HP3 & 4 HP

ditto5.5 & 7.5 HP

ditto7.5 HP

ditto

320L - 320H<10 HP10 HP400L

400M & 400H< 20 HP20 HP500L & 500M500H< 20 HP > 384 fpm20 HP < 384 fpm

ditto25 HP > 384 fpm

ditto30 HP all speeds630M630H & 800M30 HP40 HP < 384 fpm40 HP > 384 fpm> 50 HP800H

RL (in.)

All face widths< 23.62> 23.63< 23.62> 23.63

All face widths< 23.62> 23.63

All face widths< 31.50> 31.50< 27.56> 27.56< 33.46> 33.46

All face widthsditto

All face widths

All face widthsditto

All face widths

All face widths< 43.31> 43.31< 55.12> 55.12All face widthsAll face widths

All face widthsdittodittoditto

All face widths

Possible thickness (in.)

No limitation1/8 Max.1/4 Max.1/8 Max.1/4 Max.

No limitation1/4 Max.5/16 Max.

No limitation1/4 Max.5/16 Max.1/4 Max. Hot Vulcanized1/4 Max.1/8 Max. Smooth1/4

No limitation1/4 Max.No limitation

5/16 Max.Partial rubber lagging

5/16 Max.

3/8 Max.Partial rubber lagging3/8 Max.Partial rubber lagging3/8 Max.Partial rubber lagging3/8 Max.

3/8 Max.Partial rubber lagging3/8 Max.Partial rubber laggingPartial rubber lagging

12) Lagging Limitations:



• As shown in Lagging Limitations table above, certain power and belt speed combinations require that rubber lag-ging be restricted to the outer thirds of the pulley face to improve heat dissipation. Each “partially lagged” pulleyhas a thick steel shell in the center (unlagged) third of the pulley face.

• Contact Rulmeca before applying any lagging to pulley surface to obtain thickness and width specifications andmaintain Motorized Pulley warranty coverage.

• Lagging material is a wear item and should be replaced when it wears out. Service life depends upon the appli-cation. Product warranty does not include lagging wear.

• At any time all Rulmeca Motorized Pulleys shown in this catalog must be fitted with a conveyor belt to pre-vent overheating.Motorized Pulleys fitted without a belt must be referred to Rulmeca.

14) Mechanical Backstops:• Motorized Pulleys fitted with mechanical backstops are used on inclined conveyors to prevent run back of the

loaded belt when power supply is off.• The backstop is built into the Motorized Pulley and is mounted on the rotor shaft.• If pulley is supplied with optional mechanical backstop, direction of proper rotation of pulley is indicated by an

aluminum arrow or plastic sticker fastened to the end housing on the terminal box (or power cord) side of thepulley. Clockwise and counterclockwise backstops are available.

• Rotation direction is to be specified when placing the order.• Pulley rotation is specified from the point of view of a person looking at the pulley from the terminal box (or

power cord) side of the pulley. • It is essential that the identity of each of the three phases of the power supply be determined before attaching

power supply wires to the pulley to prevent the motor from driving against the backstop. The identity of eachof the three phases of the motor is clearly labeled on the terminal board, terminal strip, or wires (in power cordtype).

• Driving the motor against the mechanical backstop may damage motor and/or backstop and voids productwarranty.

15) Motor Current Overload and Overcurrent Protection:• Motor control system must include protection against operating pulley motors in excess of Full Load Amper-

age (FLA.). The control system should also include protection against voltage spikes and excessive joggingof motors. Failing to provide adequate current overload and over current protection could stress the motorand voids product warranty.

• Electrical connection diagrams for many models are included in this catalog. Connection diagrams for all othermodels are available upon request.

• FLA data is available for all motors upon request. FLA data is also supplied on motor label for each Motorized Pul-ley.

• Electrical power, control, and protection for Motorized Pulleys must adhere to all pertinent regulations.

16) Motor Thermal Protection:• All Motorized Pulley motors are supplied with built-in thermal protection. Protection

consists of heat-sensitive, bi-metallic switches built into each motor phase winding. The switches are designedto open if motor temperature elevates to an inappropriately high level. Whether insulation class “F” or “H”, ourstandard bi-metallic switch– has a maximum current limit of 2.5 amps at 230 volts.

• These switches must be connected to a normally closed control circuit (in series with a magnetic coil/relaydevice and contactor) in order to validate product warranty.

• A motor control circuit should kill motor power if thermal switch opens. Thermal switches will automaticallyclose as motor cools. Cooling times vary with pulley model, power, and size. However, 30 to 60 minutes iscommon with most motors in an ambient temperature of 70° F.



17) Motorized Pulley Mounting Orientation:• Before installing the Motorized Pulley, ensure that the data plate information agrees with your

specification.• Rulmeca Motorized Pulleys should always be mounted so that the pulley shafts are

1. Horizontal, 2. Parallel to idler rollers, and 3. Perpendicular to the conveyor belt centerline.

• Motorized Pulleys are positioned such that the mounting brackets are located parallel or perpendicular to theconveyor frame. The cable entry of the terminal box should be located downward or 90 degrees from downward.

• For Motorized Pulley types 138E to 500M “UP” is indicated with the word “UP” stamped on the pulley shaft. • Models 138E - 500M are to be mounted as shown on the sketch below.

• Models 500H - 800H are to be mounted as shown on the sketch below.

• In case of a non-horizontal installation, of more than +/-5 degrees, consult Rulmeca. • Installation and mounting of the Motorized Pulley in a position other than those described

above could cause severe product damage and voids product warranty.

• 18) Mounting Brackets:• Use the correct Rulmeca mounting brackets matching the respective types of Motorized Pulleys as listed in this

catalog.• Note that it is physically possible, but not permissible, to interchange mounting brackets between models.

Mounting brackets designed for smaller diameters or lower-powered pulleys may not be used for larger diame-ters or higher-powered pulleys.

• Mounting brackets must be mounted to frame such that belt pull is resisted by the shoulder or base of the mount-



ing bracket. Motorized Pulleys types 138E to 500M have a top shaft retaining plate. This plate is not designedto resist belt pull.

• The designer must select appropriate mounting bolts to resist belt forces and/or the weight of the pulley depend-ing on the mounting position of the Pulley.

• All types of mounting brackets must be fully supported by and fastened to the conveyor frame such that theshafts ends do not deform. Shaft ends must always be fully supported by the brackets.

• Where solid mounting brackets type AL and ALO are used, the brackets must be assembled close to theshoulder of the round shaft. This is to ensure that the Motorized Pulley has no axial clearance.

• The AL type of bracket is fitted with one or two keys depending on load.• Keys must be securely fixed and checked regularly and locked if necessary.• Mounting brackets should be fitted such that they are in contact with the shoulder of each shaft. This will:

1. Eliminate Motorized Pulley axial play between mounting brackets.2. Keep shaft deflection to a minimum.

• In noise-sensitive areas, the designer should use heavier gauge support structure and appropriate vibra-tion isolating material, as necessary.

• When Rulmeca Motorized Pulley mounting brackets are not used, it is essential that: 1. The mounting equipment supports at least 80% of the shaft flats. 2. The clearance between each shaft flat shoulder and its support is less than 0.030 inches.

• A Motorized Pulley with frequent reversible operations or many start/stops should be mounted with no axialclearance between the shaft flat and the brackets.

• Failing to follow these precautions could cause pulley and/or mounting bracket damage and voids product war-ranty.

19) Non-Belt, Partial Belt, Modular Belt:• Special Motorized Pulley designs are available for “non-belt, V-belt, partial belt, and modular belt” applica-

tions. See “Ambient Temperature Section” above.• It is essential that each special application be designed to adequately dissipate heat from the pulley surface.• Using a standard Motorized Pulley in one of these special applications could result in motor heat damage and

voids product warranty.• Contact Rulmeca for assistance with these applications.

20) Oil and Oil Seal Maintenance:• All Motorized Pulleys are supplied with an appropriate quantity of oil. Oil type is specified

by customer. Oil type and contents are given on the motor nameplate.• Standard, synthetic, food grade, low viscosity (for low temperature applications,) and high

viscosity (in noise-sensitive areas) are all available. For approved oil types and quantities, see pages 90-91.• Motorized Pulleys require periodic oil changes and are supplied with two oil fill/drain plugs in end housing.

Special “vertical mount” pulleys have four oil plugs (two in each end housing.)• The standard filling of mineral oil should be changed after each 10,000 operating hours under

normal operating conditions. • Synthetic oils should be changed after each 30,000 hours of normal operating condition. • Magnetic oil plug(s) should be cleaned during each oil change. A red dot plastic sticker indicates the position

of the magnetic oil plug.• Only approved non-conductive oil may be used in Motorized Pulleys.• Note that oil seals, regardless of oil type used, should be changed after 30,000 operating hours. On Motorized



Pulley types 320M to 800H oil seals may be changed without removing Motorized Pulley from conveyor. Motor-ized Pulley standard types 138E to TM320L require Pulley disassembly to change oil seals. Rulmeca servicepersonal or authorized local service providers to perform this work.

• Take special precautions when changing brands of oil and types of oil because of potential oil incompatibility.Contact your local oil supplier for assistance. For example, when changing from standard to synthetic oil, it is necessary to: 1. Completely drain old standard oil;2. Partially fill pulley with “Clean-Flush-Lubricate” (CFL) fluid;3. Run pulley for 20 minutes; 4. Drain CFL fluid completely; then 5. Fill pulley with appropriate amount of new synthetic oil.

• Failing to observe these oil and oil seal precautions could shorten pulley service life and voids product warranty.• All the above instructions refer to Motorized Pulleys constantly working under full load. In case of Motorized

Pulleys not working continuously under full load, the service life will increase considerably. When checking theoil, the cleanness of the oil is always the best guideline of– The wear and condition of the gears and bearings– Whether to change the oil immediately or possibly delay the oil change

21) Pulley Diameter:• The type and size of conveyor belt will determine the minimum allowable Motorized Pulley diameter. Using a

pulley diameter too small for the belt can cause belt de-lamination, belt splice damage and can shorten bothbelt and pulley lagging life. Contact your belting supplier before specifying a pulley diameter.

22) Regreasable Labyrinth Seals:• All Rulmeca Motorized Pulleys are hermetically sealed. Standard oil seals are designed to contain oil within the

Motorized Pulley during normal operating conditions. They are capable of withstanding an internal pressure risethat occurs as the pulley motor temperature increases.

• Optional regreasable labyrinth seals are available to protect oil seals from harsh operating or maintenanceconditions. Each labyrinth seal provides a barrier of steel and grease to prevent ingress of dust and fluid throughthe oil seal.

• In abrasive operating conditions labyrinth seals should be periodically grease-purged to flush abrasive dustaway from the oil seal.

• In wet conditions, where it is common to wash down equipment with high-pressure detergent spray, labyrinthseals should be refilled with grease after each wash-down. High-pressure sprays remove grease from thelabyrinth seal, removing an important part of the barrier to fluid ingress.

• Grease should always be seen at the labyrinth gap.• If in some circumstances the re-grease frequency is high, an automatic greasing system is recommended.• Failing to perform necessary labyrinth seal maintenance could shorten service life and voids product warranty.

23) Repair and Mechanical Maintenance:• Normally Motorized Pulleys require no specific attention during their operation other than the changing of oil

and oil seals. They are ready for operation immediately after connection to the power supply.• If repair or maintenance is required, the Motorized Pulley must be disconnected from the power supply before

the terminal box may be opened.• During a test run, the shaft ends must be correctly fixed to the support frame and suitable guarding must be pro-

vided around rotating parts to protect personnel.

24) Reversing Conveyors:• All Motorized Pulleys for a three-phase power supply are reversible. Mechanical backstop option is not possi-

ble for reversible conveyor applications.• The conveyor drive control system must be designed to bring the Motorized Pulley to a complete stop before

reversing conveyor belt direction.



• Reversing conveyor direction without stopping the drive motor will damage motor and gearbox and voids prod-uct warranty.

25) Surface Coating:• Motorized Pulley models 400L to 800H are supplied with a standard salt water resistant primary paint coat of

2.4 mil. For aggressive environmental conditions the Motorized Pulley should also be painted to a thicknessof 4.7 mil.

• In this case it is essential that no paint enter the gap between the shaft and the end housing to prevent shaftsealing damage.

• Motorized Pulley types 138E to 320H are supplied with powder coated end housings. The shells and shafts aretreated with anti-rust wax.

26) Storage of Motorized Pulleys:• During storage Rulmeca Motorized Pulleys must be:

– stored in a building or, as a minimum, covered by an awning.– protected against direct sunlight to insure that sealing system does not dry out.– rotated at least 180 degrees every 6 months to lubricate all internal components.

• If Motorized Pulleys must be stored longer than 1 year, they must be tested before being put into operation.Such a test should include the following.– Motor winging should be checked with an insulation tester.– Winding resistance should be checked.– Thermal protector should be checked with a continuity tester.– Pulley should be connected to the power supply and run for a minimum of 30 minutes– Pulley should then be checked to verify that there are no oil leaks – Pulley should then be checked to verify that pulley body temperature does not exceed 160° F.

• For safety reasons check that the Motorized Pulley is properly fixed to the test frame during the test.

27) Start-up:• Prior to initial start-up of Motorized Pulley:

– Verify that Motorized Pulley nameplate data matches customer specification.– Ensure electrical connections are correct.– Check that Motorized Pulley is free to rotate.– Check that slack side belt tension is adequate to prevent belt slippage.– Check that belt is not over-tensioned.– Ensure that oil is present in the Motorized Pulley.

28) Terminal Box:• Rulmeca Motorized Pulleys are available with terminal boxes or power cords to facilitate electrical installation.

Power cords are available up to a motor power of 5.5 HP.• Two types of terminal box are available:

1. Standard large terminal box with threaded brass terminals.2. Optional compact terminal box with clamp terminals (WAGO) up to a motor power of 5.5 HP.

• Switch off Motorized Pulley power supply and control circuit(s) before opening terminal box.• Each terminal box has one or more conduit nipples and a cover plate. The cover plate should be removed to

facilitate termination of power and control wires within the terminal box. After wire connections are made coverplate should be replaced.

• Terminal boxes should never be disassembled or removed from the end of the shaft to reorient conduit nipplelocation.

• Modifications to terminal boxes should only be made by an authorized Rulmeca service center or after obtain-ing permission and instructions, in writing, from Rulmeca.

• A wiring diagram is placed inside the terminal box on the back of the terminal box cover.• Dismantling and reassembling a terminal box could cause a short circuit in the factory set (and tested) inter-

nal wiring and voids product warranty.



29) Transport and Handling:• For safety reasons during transport and assembly a lifting rope suitable to support the weight of the pulley must

be used. The weight of the pulley is stamped on the data plate and /or given in the catalog. • The rope must be fixed on the shaft ends.• For Motorized Pulley types 500H – 800H, a steel rope or chains should be fixed to the eyebolts,

which are located on the mounting brackets.

30) Variable Frequency Drive:• It is essential that each Variable Frequency Drive (VFD) be set within the motor’s allowable operating spec-

trum. For Rulmeca Motorized Pulleys the allowable frequency spectrum is 12 Hz to 66 Hz. There will be nomore than 5% torque loss within this range. This means that a Rulmeca Motorized Pulley is essentially a “con-stant torque” conveyor belt drive within the allowable frequency range.

• If operators attempt to drive the motor outside of the allowable range, then torque loss becomes significant,motor current draw elevates, motor cooling can become problematic, and product warranty is void.

• Do not allow resonant frequencies in the power line to cause voltage spikes in the motor. It is possible forthe VFD to set up resonant frequencies in the power line between the VFD and the motor if the power line istoo long. Potential resonant frequencies may be eliminated in two ways. Either limit the distance between theVFD and the motor (some VFD manufacturers recommend cable lengths of 30 feet or less) or simply installa filter on the VFD output (available from VFD manufacturer.)

• To avoid any radio interference the cable from motor to the VFD may be screened and properly grounded.• The power and current range of the VFD must be selected according to the full load amperage given on the

Motorized Pulley data plate.• Do not undersize the conveyor drive. Make certain the conveyor drive provides enough belt pull at each end

of the desired belt speed range. Remember that horsepower is linearly proportional to frequency.• For example, a 10 HP Motorized Pulley, which is designed to provide 1,080 lbs of belt pull at a conveyor

speed of 300 feet per minute (fpm) on a three phase power supply of 460 volts and 60 Hz, will provide approx-imately 1,080 lbs of belt pull at 60 Hz. By definition, 1 HP equals 33,000 foot-lbs per minute. Therefore, this10 HP unit provides 1,080 lbs x 300 fpm = 324,000 ft-lbs/minute of power. This equates to (324,000 ft-lbs/minute)/(33,000 ft-lbs/minute/HP) = 9.8 HP.

• If the Motorized Pulley described above is run at 30 Hz to provide a belt speed of 150 fpm, the torque (or “beltpull”) stays constant and the belt speed decreases. Therefore, the 10 HP unit described above, while run-ning at 30 Hz, will provide the following power. 1,080 lbs x 150 fpm = 162,000 ft-lbs/minute. Note that powerat this frequency only equals (162,000 ft-lbs/minute)/(33,000 ft-lbs/minute/HP) = 4.9 HP.

• If design conditions require 10 HP at 300 fpm an 10 HP at 150 fpm, the designer will undersize the drive if hespecifies a 10 HP Motorized Pulley to be driven by a VFD at 60 Hz and 30 Hz. This is because the Motor-ized Pulley will only provide 4.9 HP at 150 fpm (30 Hz), as shown above. Therefore, if the designer knowshe will need 10 HP at 300 fpm and 10 HP at 150 fpm, he should specify a 20 HP unit designed to provide a300 fpm belt speed at 60 Hz. In this way when he uses a VFD to slow down the drive, he will have 10 HPavailable at 150 fpm (30 Hz0 and more than 10 HP available at 300 fpm (60 Hz.)

• Contact VFD supplier to properly match the VFD capabilities with the conveyor Operating requirements andMotorized Pulley electrical characteristics.



Taconite Plant Control Panel- “Before & After” (Minnesota—USA)Left photo shows control panel of taconite plant DC-powered variable speedconveyor control system before 1995 conversion to AC drives. Note SCR's,relay banks, and timer banks.

Right side shows control panel after conversion to AC motorized pulleyscontrolled with variable frequency drives. Elimination of SCR's and relaybanks improved reliability, simplified troubleshooting, and reduced energyloss.

Technical Precaution: The power and current range of the VFD must beselected according to the full load amperage given on the Motorized Pulleydata plate.

87

Motorized PulleysVariable Frequency Drives

Taconite Plant - After Conversion (Minnesota—USA)Taconite processor converted limestone feeder conveyor drives from 1975vintage DC motors and chain/sprocket speed reducers to 460 volt 3 phase60 Hz AC-powered Motorized Pulleys in 1995. Photo was taken beforechute and hood were reinstalled. ABB variable frequency drive (VFD) driveseach 19.72” diameter 5.5 HP motorized pulley to a maximum belt speed of120 FPM. Torque loss is limited to less than 5% because operating fre-quencies are between 12 and 66 Hz.

Technical Precaution: When driving motorized pulley with VFD on 460 volt3 phase 60 Hz power supply, always restrict frequencies to allowable fre-quency spectrum of 12 to 66 Hz to avoid torque loss and heat build-up.

Various Limestone Quarries (Georgia—USA)Photo shows two of ten 15.75” diameter Motorized Pulleys installed 1994-1998 to automatically “choke feed” tertiary gyratory crushers. Working incombination with a VFD and an ultrasonic sensor, each Motorized Pulleydrives a 36” wide belt at a maximum speed of 120 FPM to transfer 4” minusproduct from hopper to crusher throat at 425 TPH.

Technical Precaution: When driving motorized pulley with VFD, filter VFDoutput if it is more than 30’ from motorized pulley to avoid resonance-induced voltage spikes.

Taconite Plant - Before Conversion (Minnesota—USA)Prior to 1995 conversion to Motorized Pulleys, old maintenance-prone chain& sprocket units served as DC motor speed reducers. Frequent lubricationof pulley pillow blocks, maintenance of chains/sprockets, expanded metalsafety guards, and DC motors were all eliminated with the installation ofMotorized Pulleys at this location.

Technical Precaution: When converting a system to use a VFD do notundersize the conveyor drive. Make certain conveyor drive provides enoughbelt pull at each end of the desired belt speed range. Remember that horse-power is linearly proportional to frequency (e.g. a 10 HP Motorized Pulley,designed to provide 1,080 lbs of belt pull at 460 volts and 60 Hz, will provideapproximately 1,080 lbs of belt pull at 30 Hz, but this equates to 4.9 HP.)


Protection against solid bodies

IP Symbol Test Definition

Not Protected

Protected against touch with theflat of the hand and large solidobjects greater than 50mm

Protected against finger-touch andsolid objects greater than 12mm.

Protected against solid objectsgreater than 2.5mm

Protected against solid objectsgreater than 1.0mm.

Dust-protected!Dust shall not penetrate in a quan-tity to interfere with the satisfac-tory operation of the apparatus.

Dust-tight

0

1

2

3

4

5

6

31) International Protection (IP) Ratings

Protection of internal equipment against harmful ingress of water

IP Symbol Test Definition

Not Protected!

Protected against dripping water.

Protected against dripping waterwhen tilted up 15°.

Protected against spraying water.

Protected against splashing water.

Protected against water jets (P1 nozzle 6.3mm, water delivery rate12.5 l/min ± 5%)

Protected from projections of watersimilar to marine swells (P2 nozzle 12.5mm, water deliveryrate 100 l/min ± 5%)

Ingress of water in quantities causing harmful effects shall not be possible when the enclosure is temporarily (30 min.) immersed 1 meter in water under standardizedconditions of pressure and time

Ingress of water in quantities causingharmful effects shall not be possiblewhen the enclosure is continuouslyimmersed in water under conditions,which shall be agreed between manufacturer and the user, but aremore severe than for no. 7

0

1

2

3

4

5

6

7

8



Ceramic - Segments and BlocksTwo types of ceramic lagging are available: Solid Red Porous Ceramic Seg-ments (see photo on left) bonded directly to steel pulley face and SolidGreen Porous Ceramic Blocks (see photo insert) hot vulcanized into blacksynthetic rubber. Both types are available in “full” and “partial” face widthconfigurations are offer high traction and excellent resistance to wear.

89

“Full” Diamond Pattern Synthetic RubberMost popular lagging is 1/4” thick cold-bonded black diamond pattern syn-thetic rubber lagging in 60 durometer +/- 5 (shore hardness A.) This long-lasting material has excellent frictional characteristics in wet or dry, outdoorand indoor applications for single direction and reversing belts. Asdescribed on pages 80 & 81, other thicknesses are available as well assmooth, white, and oil-resistant rubber. Hot vulcanized bonding is alsoavailable.

Technical Precaution: Lagging thickness effects pulley heat dissipationcharacteristics. Refer to “Lagging Limitations” chart on page 80.

“Partial” Smooth Pattern Synthetic RubberAs described above, certain power and belt speed combinations require thatlagging be restricted to the outer thirds of the pulley face to improve heat dis-sipation. Photo on left shows partial lagging at 3/8” thick hot vulcanizedblack smooth pattern synthetic rubber lagging in 60 durometer +/- 5 (shorehardness A.)

Also note standard painted type ALOE mounting bracket, complete with lift-ing lug.

“Partial” Diamond Pattern Synthetic RubberCertain power and belt speed combinations require that lagging be restrict-ed to the outer thirds of the pulley face to improve heat dissipation. Each“partially lagged” pulley has an extra thick pulley shell in the center of thepulley face. Most popular partial lagging is 3/8” thick cold-bonded black dia-mond pattern synthetic rubber lagging in 60 durometer +/- 5 (shore hard-ness A.) As described on pages 80 & 81, other thicknesses are availableas well as smooth, white, and oil-resistant rubber. Hot vulcanized bondingis also available.

Also note optional regreasable stainless steel bearing cover and nicole plat-ed type AL mounting bracket, complete with lifting lug, grease nipple, andgib key.

Motorized PulleysLagging Options

Most popular ceramic lagging is 0.59” thick.

Technical Precaution: Lagging thickness effects pulleyheat dissipation characteristics. Refer to “Lagging Limi-tations” chart on page 80.


RL 138E 165E 220M & 220H 320L 320M & 320H 400L 400M 400H 500L 500H 630M 630H 800M 800H(in.) 0.5 to 1 to 5.5 to 10 HP 3 HP to 20 HP

all all 5.5 HP 7.5 HP all 4 HP 7.5 HP all 15 HP all all all all all all

11.81 0.7 - - - - - - - - - - - - - - - -13.78 1.0 1.3 - - - - - - - - - - - - - - -15.75 1.2 1.5 3 - 7 - - - - - - - - - - - -17.72 1.4 1.7 4 7 7 - - - - - - - - - - - -19.69 1.6 1.9 4 7 8 4 8 13 - - - - - - - - -21.65 1.9 2.1 5 8 8 4 9 14 9 - - - - - - - -23.62 2.1 2.4 5 8 9 4 9 15 9 14 22 - 11 - - - -25.59 2.3 2.6 6 9 10 4 10 16 10 16 23 22 11 - - - -27.56 2.5 2.8 6 9 10 5 10 17 10 17 25 23 12 - - - -29.53 2.7 3.1 7 10 11 5 11 17 11 18 26 24 12 29 - - -31.50 3.0 3.3 7 10 11 6 11 18 11 19 27 25 13 30 - - -33.46 3.2 3.5 7 10 12 6 12 20 12 20 29 26 13 31 - - -35.43 3.4 3.7 7 10 13 6 13 21 13 21 30 27 14 32 - - -37.40 3.6 3.9 8 11 14 7 14 22 14 22 31 30 15 34 54 65 -39.37 3.8 4.1 8 11 15 7 15 23 15 24 35 32 16 36 56 68 -41.34 3.8 4.3 8 11 15 7 16 24 16 25 36 33 16 38 57 70 -43.31 4.0 4.6 8 11 16 7 17 25 17 26 39 34 17 40 60 73 -45.28 4.2 4.9 9 12 17 8 18 27 18 27 40 36 18 42 62 75 -47.24 4.4 5.1 9 12 19 8 19 29 19 29 42 38 19 44 64 77 -49.21 4.6 5.3 9 12 20 9 20 30 20 30 43 39 19 46 66 79 -51.18 4.9 5.5 9 12 21 9 21 31 21 31 44 40 20 48 68 80 -53.15 5.1 5.7 10 13 22 10 22 33 22 32 47 42 21 49 70 82 -55.12 5.3 5.9 10 13 23 10 23 35 23 34 49 44 22 51 72 84 14357.09 5.4 6.1 10 13 24 11 24 36 24 35 51 45 23 52 74 86 14559.06 5.6 6.3 11 14 25 12 25 38 25 36 52 47 23 53 76 88 14861.02 5.1 6.1 11 14 26 13 26 40 26 37 54 49 24 54 78 90 15062.99 5.3 6.3 11 14 27 14 27 42 27 38 55 51 25 56 80 93 15364.96 5.4 6.6 12 15 28 15 28 43 28 39 57 53 26 57 83 95 15666.93 5.6 6.8 12 15 29 16 29 44 29 40 59 55 27 58 85 97 15968.90 5.8 7.0 13 16 30 17 30 45 30 41 61 57 28 60 87 99 16170.87 5.9 7.2 14 17 31 18 31 47 31 43 64 59 30 61 89 101 16472.83 - - 14 17 32 19 32 49 32 45 65 63 31 63 91 104 16674.80 - - 15 18 33 20 33 52 33 47 68 68 33 64 93 106 169

90

32) Oil Quantities in Quarts for Standard Motorized Pulleys in Horizontal Applications

Note: The oil quantities shown above are valid for standard lagged Motorized Pulleys. For special options (e.g. certain types ofspecial lagging, high duty cycle applications, etc) oil quantities may vary. Therefore, always refer to oil quantity listed on motordata plate or contact Rulmeca.

Quarts

RL

Ø


400M & 400H


Motorized Pulley Motor Allowable ISO 3498 DIN 51517-3 Castrol BP ESSO Mobiloil Shell TexacoModel and Insulation Ambient Viscosity Performance

Type of Oil Class Temperature1 Grade4 Requirements

Ø138-800 -13°F to ALPHA ENERGOL SPARTAN MOBILGEAR OMALA MEROPAStandard Oil F +104°F 150 CLP SP 150 GR-XP 150 EP 150 629 150 150

Ø138-800 -13°F to ALPHA- - SPARTAN SHC 630 - -Synthetic Oil2 F +104°F 220 CLP SYNTH 220 Syn. EP 220

Ø138-800 -13°F to ALPHA- - SPARTAN SHC 630 - -Synthetic Oil2 H +120°F 220 CLP SYNTH 220 Syn. EP 220

Ø138-800 -22°F to - - - - - Shell Cassida -Food Grade Oil3 F & H +104°F 220 GL220

Model Inclination Typical PrecautionsAngle (α) application

138E & 165E 5° to 90° Magnetic220M & 220H Separators320L, 320M & 320H400L

Special design & special oilquantity. Contact Rulmecabefore placing order.

91

32) Oil Quantities in Quarts for Motorized Pulleys in Vertical Applications

32) Oil Quantities for Special Version Motorized Pulleys - Contact Rulmeca

quarts

33) Oil Specifications

Model Oil Quantity SpecificationsQuarts

138E 1.5165E 3.2220M 10.6220H 10.6320L 26.4320M 26.4320H 26.4400L 42.3

Electricalconnection

to belocated

at the top

Note:The oil quantities shown are validfor standard vertical Motorized Pul-leys. For special options (e.g. cer-tain types of lagging, high dutycycle applications, etc) oil quanti-ties may vary. Therefore, alwaysrefer to oil quantity listed on motordata plate.

1 Allowable ambient temperature refers to temperature in the vicinity of Motorized Pulley. See Technical Precautions page 77-78.2 Synthetic oil is supplied with all Class H motors. It is also available with Class F motors to reduce oil change frequency (see page 83,) reduce gear wear, and

reduce noise.3 This oil complies with food additive regulation 12 CPR.4 ISO Viscosity Grades are shown in centistokes at +104°F. See also ISO 3498 and DIN 31519 for more information.




USA standard 460V power supply


34) External ConnectionDiagrams for StandardMotorized Pulleys

Standard Terminal Box0.5 HP - 180 HP

92

Diagrams are valid for MotorizedPulleys manufactured after Janu-ary 2004. For units built prior tothis date contact Rulmeca or referto Repair and Maintenance Guideavailable atwww.rulmecacorp.com.

T1 & T2 = Internal bi-metallic ther-mal protection switch which MUSTBE CONNECTED to external nor-mally closed control circuit.

See Technical Precautions pages76 - 86 for complete electricaldesign, installation, and mainte-nance instructions.

115V1PH

60 Hznormally closedcontrol circuit

115V1PH


fuse(breaker)

fuse(breaker)

3 pole starter(contactor)


fuses (breaker)

fuses (breaker)

460V3PH

60 Hzpower supply

230V3PH

60 Hzpower supply

L3

L2

L1

L3

L2

L1

U2

V2

V1

W2

W1U1

T2T1

U2W2

V2

V1

U1 W1

T1 T2



34) External ConnectionDiagrams for StandardMotorized Pulleyswith Internal Brake


USA standard 460V power supply(with 207VDC brake)

USA standard 230V power supply(with 104VDC brake)

93

Diagrams are valid for MotorizedPulleys manufactured after January2004. For units built prior to thisdate contact Rulmeca or refer toRepair and Maintenance Guideavailable at www.rulmecacorp.com.



Brake rectifier is shown with jumperacross terminals 3 and 4. Thisenables AC power supply to rectifi-er to stop and start brake. Brakeresponsiveness may be improvedby connecting an external switch toterminals 3 and 4.

Internal electromagnetic brake isavailable in models 220M - 500M.

115V1PH


115V1PH


460V3PH

60 Hzpower supply

230V3PH

60 Hzpower supply



fuse(breaker)

fuse(breaker)

fuses (breaker)

fuses (breaker)

brake rectifierterminations


460V60 Hz

230V60 Hz

W2

W2

U2

U2

V2

V2

U1

U1

V1

V1

W1

W1

1 542 63

1 2 3 4 5 6

T1

T1

T2

T2

F2F1

F2F1

L3

L2

L1

L3

L2L1



94

Non-USA standard power supply (High Voltage)

Non-USA standard power supply (Low Voltage)



VAC1PH

normally closedcontrol circuit

VAC1PH


VAC3PH

power supply

VAC3PH

power supply



fuse(breaker)

fuse(breaker)

fuses (breaker)

fuses (breaker)

W2

W2

U2

U2

V2

V2

U1

U1

V1

V1

W1

W1

T1

T1

T2

T2

L3L2

L1

L3

L2

L1

34) External ConnectionDiagrams for StandardMotorized Pulleys




95

Non- USA standard power supply (High Voltage)

Non- USA standard power supply (Low Voltage)



Brake rectifier is shown with jumperacross terminals 3 and 4. Thisenables AC power supply to rectifi-er to stop and start brake. Brakeresponsiveness may be improvedby connecting an external switch toterminals 3 and 4.

Internal electromagnetic brake isavailable in models 220M - 500M.

VAC1PH


VAC1PH


VAC3PH

power supply

VAC3PH

power supply



fuse(breaker)

fuse(breaker)

fuses (breaker)

fuses (breaker)



VAC1PH

VAC1PH

W2

W2

U2

U2

V2

V2

U1

U1

V1

V1

W1

W1

1 2 4 53 6

1 2 3 4 5 6

T1

T1 T2

T2

F2F1

F2F1

L3

L2L1

L3

L2L1

34) External ConnectionDiagrams for StandardMotorized Pulleyswith Internal Brake




96


USA standard 460V powersupply (with 207VDC brake)

Non-USA standard power supply(low voltage)

Non-USA standard power supply(high voltage)

Single Phase power supply (counterclockwise rotation)

Single Phase power supply (clockwise rotation)

Power cord wires are supplied withblack insulation and white numbers.Wire numbers are indicated on the dia-gram.

T1 & T2 = Internal bi-metallic thermalprotection switch which MUST BECONNECTED to external normallyclosed control circuit.

EB = electromagnetic brake

See Technical Precautions pages 76 - 86 for complete electrical design,installation, and maintenance instruc-tions.

Brake rectifier is shown with jumperacross terminals 3 and 4. This enablesAC power supply to rectifier to stopand start brake. Brake responsivenessmay be improved by connecting anexternal switch to terminals 3 and 4.

For two speed motor details contactRulmeca.

Internal electromagnetic brake is avail-able in models 220M - 500M.







fuses (breaker)

fuses (breaker)

fuses (breaker)

fuses (breaker)

fuses (breaker)

fuses (breaker)

460VAC3PH

60 Hzpower supply

460VAC3PH

60 Hzpower supply

115VAC1PH

60 Hznormallyclosed

control circuit

115VAC1PH

60 Hznormallyclosed

control circuit

VAC1PH

normallyclosed

control circuitVAC1PH

normallyclosed

control circuit

VACnormallyclosed

control circuit

VACnormallyclosed

control circuit

3-Ph-Motor 3-Ph-Motor (EB)

460VAC60 Hz




VAC3PH

power supply

VAC3PH

power supply

3-Ph-Motor (Delta) 3-Ph-Motor (Star)

1-Ph-Motor (EB) 1-Ph-Motor (EB)

VACpower supply

VACpower supply

VACVAC

U1

V1

W1

W2

U2

V2

T1 T2 U1

V1

W1

W2

U2

V2

T1 T2

U1

V1

W1

T1 T2 U1

V1

W1

T1 T2 F1 F2

Z1 U1

U2

Z2 B1

B2

T1 T2 Z2 U1

U2

Z1 B1

B2

T1 T2

L1

L2

L3 L3

L2

L1

L1

L1

L1 L1N N

L2

L2

L3

L3

1 2 3 4 5 gn/ye 1 2 3 4 5 6 7 gn/ye

1 2 3 4 5 6 7 8 gn/ye

1 2 3

1 2 3 4 5 6 7 8 gn/ye

3 1 2 4 5 6 7 8 gn/ye 4 1 2 3 5 6 7 8 gn/ye

1 2 3 4 5 6

1 2 3 4 5 61 2 3 4 5 6

34) Connection Diagramsfor Motorized Pulleys 220M - 400L

Power Cord0.5 HP - 5.5 HP

34) Connection Diagramsfor Motorized Pulleys138E - 400L

Compact Terminal Boxand WAGO-Clamp0.13 HP - 5.5 HP




See Technical Precautions pages 76 -86 for complete electrical design,installation, and maintenance instruc-tions.

Characters in parentheses are for 2 stage gearbox

Brake rectifier is shown with jumperacross terminals 3 and 4. Thisenables AC power supply to rectifierto stop and start brake. Brakeresponsiveness may be improved byconnecting an external switch to ter-minals 3 and 4.


RD = RedYE = YellowBK = BlackGY = GreyBU = BlueGN = GreenWH = WhiteBN = BrownT1 & T2 = Thermal ProtectorEB = Electromagnetic brake

97

Assembly instructions


Non-USA standard power supply








fuses (breaker)

fuses (breaker)

fuses (breaker)

fuses (breaker)

fuses (breaker)

fuses (breaker)

brake rectifier terminations



460VAC3PH

60 Hzpower supply

460VAC3PH

60 Hzpower supply

VAC1PH

normallyclosed

control circuit

VAC1PH

normallyclosed

control circuit

460VAC60 Hz

230VAC60 Hz

115VAC1PH

60 Hznormally closed

control circuit

115VAC1PH


control circuit

207VDCelectro-magneticbrake

104VDCelectro-magneticbrake

3-Ph-Motor3-Ph-Motor

3-Ph-Motor3-Ph-Motor

3-Ph-Motor (Delta)3-Ph-Motor (Delta)

115VAC1PH


control circuit

115VAC1PH


control circuit

230VAC3PH

60 Hzpower supply

230VAC3PH

60 Hzpower supply

VDCelectro-magneticbrake

VAC

VAC3PH

powersupply

VAC3PH

powersupply

(1.) Pushdownclamp

(2.) Push inwire

L1 L1

L1 L1

L1 L1

L2 L2

L2 L2

L2 L2

L3 L3

L3 L3

L3 L3

TC/THS TC/THS

TC/THS TC/THS

TC/THS TC/THS

EB

EB

EB

1 2 3 4 5 6

1 2 3 4 5 6

1 2 3 4 5 6

(ye) (rd)rd ye bu gn gn bu gn gn wh wh

(ye) (rd)rd ye

(ye) (rd)rd ye

(ye) (rd)rd yebu gn gn bu gn gn wh wh

bu bu gn gn bu bu gn gn wh wh(ye)(gy)(rd)(bk)

rd bk ye gy (ye)(gy)(rd)(bk)

rd bk ye gy

Y L1 L2 L3 T1 T2 B1 B2 Y L1 L2 L3 T1 T2 B1 B2

Y L1 L2 L3 T1 T2 B1 B2Y L1 L2 L3 T1 T2 B1 B2




98

Assembly instructions

Non-USA standard power supply





Characters in parentheses are for 2 stage gearbox

Brake rectifier is shown with jumperacross terminals 3 and 4. Thisenables AC power supply to rectifierto stop and start brake. Brakeresponsiveness may be improved byconnecting an external switch to ter-minals 3 and 4.


RD = RedYE = YellowBK = BlackGY = GreyBU = BlueGN = GreenWH = WhiteBN = BrownT1 & T2 = Thermal ProtectorEB = Electromagnetic brake





fuses (breaker)

fuses (breaker)

fuses (breaker)

fuses (breaker)




VAC1PH

normallyclosed

control circuit

VAC1PH

normallyclosed

control circuit

VACnormally closedcontrol circuit

VACnormally closedcontrol circuit

3-Ph-Motor (Star) 3-Ph-Motor (Star)

1-Ph-Motor

1-Ph-Motor

VDC electro-magneticbrake


VAC3PH

power supply

VAC3PH

power supply

VACpower supply

VACpower supply

VAC

VAC

VAC

(1.) Pushdownclamp

(2.) Push inwire

L1 L1

L1

L1

L2 L2

N

N

L3 L3

TC/THS TC/THS

TC/THS

TC/THSEB

EB

EB

EB

1 2 3 4 5 6

1 2 3 4 5 6

1 2 3 4 5 6

(ye)(rd)rd ye

(ye)(rd)rd ye

(rd)ye

(ye)rd

(ye)rd

(rd)ye

gy bn bk gy bn bkbu gn gn bu gn gn wh wh

gn gn wh whbk bu

bk bu gn gn wh wh


Y L1 L2 L3 T1 T2 B1 B2

Y L1 L2 L3 T1 T2 B1 B2


34) Connection Diagrams for Motorized Pulleys138E - 400L

Compact Terminal Boxand WAGO-Clamp0.13 HP - 5.5 HP

Power cord wires are supplied withblack insulation and white numbers.Wire numbers are indicated on the dia-gram.


EB = electromagnetic brake


Brake rectifier is shown with jumperacross terminals 3 and 4. This enablesAC power supply to rectifier to stop andstart brake. Brake responsivenessmay be improved by connecting anexternal switch to terminals 3 and 4.


34) Connection Diagramsfor Motorized Pulleys 138E & 165E

Power Cord0.13 HP - 2.0 HP



99


USA standard 460V powersupply (with 207VDC brake)

Non-USA standard power supply(low voltage)

Non-USA standard power supply(high voltage)









fuses (breaker)

fuses (breaker)

fuses (breaker)

fuses (breaker)

fuses (breaker)

fuses (breaker)




460VAC3PH

60 Hzpower supply

460VAC3PH

60 Hzpower supply

115VAC1PH

60 Hznormallyclosed

control circuit

115VAC1PH

60 Hznormallyclosed

control circuit

VAC1PH


VAC1PH

normallyclosed

control circuit

VACnormallyclosed

control circuit

VACnormallyclosed

control circuit

VACpowersupply

VACpowersupply

VAC 3PH

powersupply

VAC 3PH

powersupply

VAC VAC

1-Ph-Motor (EB) 1-Ph-Motor (EB)

3-Ph-Motor (Star)3-Ph-Motor (Delta)

3-Ph-Motor (EB)3-Ph-Motor

460VAC60 Hz

U1

V1

W1

W2

U2

V2

T1 T2 U1

V1

W1

W2

U2

V2

T1 T2

Z1 U1

U2

Z2 B1

B2

T1 T2 Z2 U1

U2

Z1 B1

B2

T1 T2

U1

V1

W1

T1 T2 U1

V1

W1

B1

B2

T1 T2

L3L3

L3

L3

N N

L2L2

L2

L2

L1

L1

L1

L1L1

4 1 2 3 5 6 7 8 gn/ye3 1 2 4 5 6 7 8 gn/ye

1 2 3 7 8 gn/ye1 2 3 5 6 7 8 gn/ye

1 2 3 4 5 6 7 8 gn/ye 1 2 3 4 5 6 7 8 gn/ye

1 2 3

1 2 3 4 5 6

1 2 3 4 5 61 2 3 4 5 6

L1

100

34) External ConnectionDiagram for StandardMotorized Pulleys 500H - 800H with InternalAnti-condensation Heating Element

Note: The time delay for (TR) should be between 10 and 180 seconds.

34) External ConnectionDiagram for StandardMotorized Pulleys 500H - 800H with Trickle Voltage Heating

Diagrams are valid for Motorized Pulleysmanufactured after January 2004. For unitsbuilt prior to this date contact Rulmeca orrefer to Repair and Maintenance Guide avail-able at www.rulmecacorp.com.

Terminals H1 & H2 for the anti-condensationheating element are live during MotorizedPulley stoppage.

Terminals T1 & T2 for thermal protectionswitch which MUST BE CONNECTED toexternal normally closed control circuit.

See Technical Precautions pages 76 - 86 forcomplete electrical design, installation, andmaintenance instructions.

Diagrams are valid for Motorized Pulleysmanufactured after January 2004. Forunits built prior to this date contact Rulme-ca or refer to Repair and MaintenanceGuide available at www.rulmecacorp.com.

T1 & T2 = Internal bi-metallic thermal pro-tection switch which MUST BE CON-NECTED to external normally closed con-trol circuit.

See Technical Precautions pages 76 - 86for complete electrical design, installation,and maintenance instructions.



460V 3PH 60 Hz power supply

115V 1PH 60 Hz normally closed control circuit

Anti-condensation heating element must be connected insuch a way that it is turned off during motor operation.


TC101: 03/07www.rulmecacorp.com

Documents

PGS 1 to 19forpeter chapman - Rulmeca Corp