Stromag Periflex VN Disc Couplings

Stromag Periflex® VNDisc Couplings

A L T R A M O T I O N

Altra is a leading global designer and producer of a wide range of electromechanical power transmission and motion control components and systems. Providing the essential control of equipment speed, torque, positioning, and other functions, Altra products can be used in nearly any machine, process or application involving motion. From engine braking systems for heavy duty trucks to precision motors embedded in medical robots to brakes used on offshore wind turbines, Altra has been serving customers around the world for decades.

Altra’s leading brands include Ameridrives, Bauer Gear Motor, Bibby Turboflex, Boston Gear, Delevan, Delroyd Worm Gear, Formsprag Clutch, Guardian Couplings, Huco, Jacobs Vehicle Systems, Kilian, Kollmorgen, Lamiflex Couplings, Marland Clutch, Matrix, Nuttall Gear, Portescap, Stieber, Stromag, Svendborg Brakes, TB Wood’s, Thomson, Twiflex, Warner Electric and Wichita Clutch.

VISIT US ON THE WEB AT ALTRAMOTION.COM

Altra Motion

StromagFounded in 1932, Stromag has grown to become a globally recognized leader in the development and manufacture of innovative power transmission components for industrial drivetrain applications. Stromag engineers utilize the latest design technologies and materials to provide creative, energy-efficient solutions that meet their customer’s most challenging requirements.

Stromag’s extensive product range includes flexible couplings, disc brakes, limit switches, an array of hydraulically, pneumatically, and electrically actuated brakes, and a complete line of electric, hydraulic and pneumatic clutches.

Stromag engineered solutions improve drivetrain performance in a variety of key markets including energy, off-highway, metals, marine, transportation, printing, textiles, and material handling on applications such as wind turbines, conveyor systems, rolling mills, agriculture and construction machinery, municipal vehicles, forklifts, cranes, presses, deck winches, diesel engines, gensets and stage machinery.

VISIT US ON THE WEB AT STROMAG.COM

Stromag’s extensive product range includes flexible couplings, disc brakes,

Stromag – Flexible CouplingsStromag Periflex® VN Disc Coupling

I 3Stromag +49 2303 102-0P-8462-SG-A4 | E-812-90000G 02/21

CONTENTPERIFLEX® VN DISC COUPLINGS: I

COUPLING AT A GLANCE 4

Product range

Benefits include

Applications areas

Fail-safe device

Classifications

Torque range

Instruction for the designer

Use in potencially explosive enviroments

The torsional vibration analysis

Stromag Periflex® VN NR Series output table 11

Stromag Periflex® VP NR Series output table 13

SERIES G

Stromag Periflex® VN ... Series G 14

Stromag Periflex® VP ... Series G 16

SERIES R

Stromag Periflex® VN ... Series R 17

Stromag Periflex® VP ... Series R 19

SERIES S

Stromag Periflex® VN ... Series S 20

SERIES W

Stromag Periflex® VN ... Series W 22

Stromag Periflex® VP ... Series W 24

Characteristic 25

Coupling Design, question sheet 28

Use in potentially explosive environments, question sheet 29

Stromag – Flexible Couplings

I 4 P-8462-SG-A4 | E-812-90000GStromag +49 2303 102-0 02/21

COUPLING AT A GLANCE

Nominal torque range: 160 – 63,000 Nm

PERIFLEX® VN ... SERIES G

PERIFLEX® VP ... SERIES G


PERIFLEX® VN ... SERIES R

PERIFLEX® VP ... SERIES R

SERIES G SERIES R - Radial installations


I 5Stromag +49 2303 102-0P-8462-SG-A4 | E-812-90000G 02/21


0.16 – 8 kNm

Nominal torque range: 160 – 8000 Nm

PERIFLEX® VN ... SERIES S


PERIFLEX® VN ... SERIES W

PERIFLEX® VP ... SERIES W

SERIES S SERIES W - Shaft Coupling


I 6 P-8462-SG-A4 | E-812-90000GStromag +49 2303 102-0 02/21

BENEFITS INCLUDE

STROMAG PERIFLEX® VN DISC COUPLINGS

• Periflex® VN Couplings are highly flexible elastomer couplings with

linear spring characteristics ideal for diesel engine drives.

• Allow fast and simple connection of a flange, especially a flywheel,

to a shaft. Some designs also allow the connection of two shafts.

• Periflex® VN Couplings are couplings that features an axial plug-

in connection for easy installation and removal, for both the entire

coupling and the flexible element.

• Come with each with a range of elastomer qualities and torsional

spring stiffnesses. These allow precise configurations for drives

susceptible to torsional vibrations.

• Cover the torque range 160 – 63,000 Nm. The external companion

dimensions conform as standard to the flywheel connections under the

SAE standard J620.

The larger couplings are basically designed with metric flywheel

connections.

• At the fully intermeshing teeth on the connection ring, the disc tire can

be displaced along its axis by several millimetres when no torque is

applied.

• On request, high temperature mixture available for stationary systems

up to 8000 Nm.



I 7Stromag +49 2303 102-0P-8462-SG-A4 | E-812-90000G 02/21

APPLICATIONS AREAS

• Stromag Periflex® VN couplings are designed for use on piston engines. The connection ring can be bolted directly to the flywheel of an engine or compressor.

• Its axial plug-in design presents particular advantages e.g. for installations under bell covers.

• Other application fields are electrical assemblies, compressors, construction machinery, engine and shipbuilding and general machinery.

FAIL-SAFE DEVICE

The Stromag Periflex® VN coupling is available with a fail-safe device. A rupture in the flexible element causes claws to intermesh, forming a torsionally rigid, backlash connection between the drive and output sides. Temporary emergency operation is possible with limited torque. The permissible torques and speeds must be calculated separately on the basis of torsional vibrations transferred via a torsionally rigid structure.



I 8 P-8462-SG-A4 | E-812-90000GStromag +49 2303 102-0 02/21

TORQUE RANGE

• 160 up to 63,000 Nm

For survey of the coupling by a classification society, the regulations of the society have to be adhered to. The coupling characteristics may differ from the definitions given in this catalogue. Accordingly prepared data sheets are available on request.

A number of classification societies prescribe fail-safe devices on ships main drives.

CLASSIFICATIONS

INSTRUCTION FOR THE DESIGNER

The Stromag Periflex® VN coupling hubs are made of steel or ductile cast iron. The connection ring is made of aluminium. The disc tires consist of a steel or ductile cast iron angular ring with a volume of vulcanized elastomer. The variants of natural rubber (NR) can be used at temperatures of -50°C to +80°C. The high temperature Coupling variant can be used from -30 °C up to 120 °C.

Damping work may cause the flexible element to reach temperatures higher than ambient. This must be considered when the coupling is to be fitted with a guard or cowl, and adequate ventilation and heat dissipation must be provided.

The Stromag Periflex® VN coupling can be delivered with EN 10204 acceptance as defined in the classification societies rules.

The coupling complies with the requirements under API 671 with consideration to our list of deviations TM 800.0010.

This list of deviations is available from the Stromag GmbH departments.

USE IN POTENCIALLY EXPLOSIVE ENVIROMENTS

The coupling conforms to the requirements under Directive 2014/34/EU and can be used as follows:

a. Zone 1 (gas, Category 2G) in Groups IIA, IIB, and IIC, T4

b. Zone 2 (gas, Category 3G) in Groups IIA, IIB, and IIC, T4

c. Zone 22 (dust, Category 3D) for dusts with a minimum ignition energy > 3 mJ, T 125 °C

The Stromag Periflex® VN coupling compliance with the requirements for each of these zones / categories is documented in the form of the following codes on our products:

Use in gas atmospheres:

II 2G Ex h IIC (T4) Gb

Use in potentially explosive environments must be based on the request form annexed to this catalogue.

Use in dust atmospheres:

II 3D Ex h IIIC T120°C Dc



I 9Stromag +49 2303 102-0P-8462-SG-A4 | E-812-90000G 02/21

Stromag‘s Know-how in Torsional Vibration Analysis (TVA) constitutes the core of each coupling design. It provides a comprehensive analysis of loads in the crankshaft, cou-pling and driven side to ensure that no critical speeds occur during operation.

Unevenly rotating systems can severely degrade product quality and cause great harm to the powertrain. On a daily basis, the TVA experts at Stromag work on the challenge of detecting such deviations by measuring them and protecting the entire powertrain with ideal product selection. Stromag is capable of calculating stationary and transient operating conditions considering the stiffness and damping of the elastomers.

THE TORSIONAL VIBRATION ANALYSIS


Stromag – Flexible Couplings Stromag Periflex® VN Disc Coupling

I 10 P-8462-SG-A4 | E-812-90000GStromag +49 2303 102-0 02/21


I 11Stromag +49 2303 102-0P-8462-SG-A4 | E-812-90000G 02/21

Stromag Periflex® VN NR Series output table

Coup

ling

size

Tire

Nom

inal

torq

ue

Max

torq

ue

Adm

. alte

rnat

ing

torq

ue

Adm

. rad

ial

disp

lace

men

t

Radi

al s

tiffn

ess

Tors

iona

l stif

fnes

s

Rela

tive

dam

ping

Adm

. dam

ping

pow

er

SAE

conn

ectio

n

Max

Spe

ed

Tkn

NmTkmax 1)

NmTKW

Nm∆Kr

mmCr dyn 4)N/mm

CT dyn 2) 4)Nm/rad

ψ 2) 4)PKV 60 3) 5)

Wnmax

rpm

Periflex®

VN 183

VN 18311VN 18331VN 18321VN 18341VN 18351

160200200200200

480480480480480

80100100100100

0,4

375600730900

1500

11501510190022403910

0,800,961,001,201,30

104104104104104

6 ½“7 ½“

8“

500044004000

Periflex®

VN 230

VN 23011VN 23031VN 23021VN 23041VN 23051

250315315315315

750750750750750

125155155155155

0,5

400650800950

1600

15102000276032605690

0,800,961,001,201,30

156156156156156

8“10“

40003600

Periflex®

VN 280

VN 28011VN 28031VN 28021VN 28041VN 28051

400500500500500

12001200120012001200

200250250250250

0,6

350750900

10601750

22803300416049208580

0,800,961,001,201,30

221221221221221

10“11 ½ “

36003600

Periflex®

VN 283

VN 28311VN 28331VN 28321VN 28341VN 28351

630800800800800

19001900190019001900

315400400400400

0,6

5001050127015002450

3760545072008120

14170

0,800,961,001,201,30

234234234234234

10“11 ½“

36003600

Periflex®

VN 350

VN 35011VN 35031VN 35021VN 35041VN 35051

10001250125012501250

30003000300030003000

500625625625625

0,7

7501200150018003000

766011100139901654028860

0,800,961,001,201,30

260260260260260

11 ½“14

36003000

Periflex®

VN 358

VN 35811VN 35831VN 35821VN 35841VN 35851

16002000200020002000

48004800480048004800

8001000100010001000

0,5

3400510063007650

12600

1670024200332003606058500

0,800,961,001,201,30

260260260260260

11 ½“14“

36003000

Periflex®

VN 430

VN 43011VN 43031VN 43021VN 43041VN 43051

16002000200020002000

48004800480048004800

8001000100010001000

0,9

6601400170020003300

780011300139001684029380

0,800,961,001,201,30

494494494494494

14“18“

30002400


I 12 P-8462-SG-A4 | E-812-90000GStromag +49 2303 102-0 02/21

Stromag Periflex® VN NR Series output table

Coup

ling

size

Tire

Nom

inal

torq

ue

Max

torq

ue

Adm

. alte

rnat

ing

torq

ue

Adm

. rad

ial

disp

lace

men

t

Radi

al s

tiffn

ess

Tors

iona

l stif

fnes

s

Rela

tive

dam

ping

Adm

. dam

ping

pow

er

SAE

conn

ectio

n

Max

Spe

ed

TKN

NmTKmax 1)

NmTKW

Nm∆Kr

mmCr dyn 4)N/mm

CT dyn 2) 4)Nm/rad

ψ 2) 4)PKV 60 3) 5)

Wnmax

rpm

Periflex®

VN 433

VN 43311VN 43331VN 43321VN 43341VN 43351

25003150315031503150

75007500750075007500

12501550155015501550

0,8

14002300287034505700

1863027000340204023070200

0,800,961,001,201,30

520520520520520

14“18

30002400

Periflex®

VN 436

VN 43611VN 43631VN 43621VN 43641VN 43651

40005000500050005000

1200012000120001200012000

20002500250025002500

0,7

23003800475057009400

2540034600466005364093600

0,800,961,001,201,30

572572572572572

14“16“18“

300026002400

Periflex®

VN 439

VN 43911VN 43931VN 43941VN 43951

3200400040004000

10000100001000010000

1600200020002000

0,7

1750260039006500

362305250076000

136500

0,800,961,201,30

390390390390

14“16“18“

300026002400

Periflex®

VN 544

VN 54411VN 54431VN 54421VN 54441VN 54451

63008000800080008000

1900019000190001900019000

31504000400040004000

0,8

310051007600

1140017100

6279091000

114700135600226400

0,800,961,001,201,30

622622622622622

18“21“

24001800

Periflex®

VN 549

VN 54911VN 54931VN 54921VN 54941VN 54951

800090009500

1100012000

1700020000210002200025000

40004500475055006000

0,8

60009000

112501350022000

88320128000161300204700332800

0,800,961,001,201,30

650650650650650

18“21“

24001800

Periflex®

VN 666

VN 66611VN 66631VN 66621VN 66641VN 66651

1600020000200002000020000

4800048000480004800048000

800010000100001000010000

0,8

610010200152002280034200

111800162000205000241400428500

0,800,961,001,201,30

11001100110011001100

21“24“

18001500

Periflex®

VN 726

VN 72611VN 72631VN 72621VN 72641VN 72651

2850031500315003150031500

6850075500755007550075500

1425015750157501575015750

0,8

708011800176302645039670

225000300000370000530000950000

0,800,961,001,201,30

13001300130013001300

24“ 1500


I 13Stromag +49 2303 102-0P-8462-SG-A4 | E-812-90000G 02/21

Stromag Periflex® VP NR Series output table

Coup

ling

size

Tire

Nom

inal

torq

ue

Max

torq

ue

Adm

.al

tern

atin

gto

rque

Adm

. rad

ial

disp

lace

men

t

Radi

alst

iffne

ss

Tors

iona

lst

iffne

ss

Rela

tive

dam

ping

Adm

. dam

ping

pow

er

SAE

conn

ectio

n

Max

Spee

d

TKN

NmTKmax 1)

NmTKW

Nm∆Kr

mmCr dyn 4)N/mm

CT dyn 2) 4)Nm/rad

ψ 2) 4) PKV 60 3) 5)W

nmax

rpm

Periflex®

VP 433

VN 43311VN 43331VN 43321VN 43341VN 43351

50006300630063006300

1500015000150001500015000

25003100310031003100

0,8

2800460057406900

11400

37260540006804080460

140400

0,800,961,001,201,30

10401040104010401040

18“ 2400

Periflex®

VP 436

VN 43611VN 43631VN 43621VN 43641VN 43651

800010000100001000010000

2400024000240002400024000

40005000500050005000

0,7

460076009500

1140018800

508006920093200

107300187200

0,800,961,001,201,30

11401140114011401140

18“ 2400

Periflex®

VP 439

VN 43911VN 43931VN 43941VN 43951

6400800080008000

20000200002000020000

3200400040004000

0,7

350052007800

13000

72460105000152000273000

0,800,961,201,30

780780780780

18“ 2400

Periflex®

VP 544

VN 54411VN 54431VN 54421VN 54441VN 54451

1260016000160001600016000

3800038000380003800038000

63008000800080008000

0,8

620010200152002280034200

125600182000229300271200452800

0,800,961,001,201,30

12401240124012401240

21“ 1800

Periflex®

VP 549

VN 54911VN 54931VN 54921VN 54941VN 54951

1600018000190002200024000

3400040000420004400050000

800090009500

1100012000

0,8

1200018000225002700044000

176600256000322600400400665600

0,800,961,001,201,30

13001300130013001300

21“ 1800

Periflex®

VP 666

VN 66611VN 66631VN 66621VN 66641VN 66651

3200040000400004000040000

9600096000960009600096000

1600020000200002000020000

0,8

1220020400304004560068400

223600324000410000482800857000

0,800,961,001,201,30

22002200220022002200

24“ 1500

Periflex®

VP 726

VN 72611VN 72631VN 72621VN 72641VN 72651

5700063000630006300063000

137000151000151000151000151000

2850031500315003150031500

0,8

1416023600352605290079340

450000600000740000

10600001900000

0,800,961,001,201,30

26002600260026002600

metric 1500

1) The values listed in the tables refer to the disc tire characteristics.

2) For: TW = 0,2 • TKN; T = 0,8 • TKN; f = 10 Hz; ϑ = 30°C

3) This value must be reduced by the temperature factor when the coupling temperatures are higher than 30°C.

4) Tolerances on the materials may be as high as ±15%.

5) PKV 60 value represents the damping power that can be absorbed over a period of 60 minutes.

The damping power that can be absorbed permanently is PKV∞ = 0,5 • PKV 60.

Temperature factor SϑPKV

Ambient temperature [°C] -30 °C up to 30°C 40 50 60 70 80

Temperature factor SϑPKV [-] 1,0 0,875 0,750 0,625 0,500 0,375


I 14 P-8462-SG-A4 | E-812-90000GStromag +49 2303 102-0 02/21

Stromag Periflex® VN...G Series

Size Periflex® VN 183 Periflex® VN 230 Periflex® VN 280 Periflex® VN 283 Periflex® VN 350 Periflex® VN 358 Periflex® VN 430

Tire

VN 18311VN 18331VN 18321VN 18341VN 18351

VN 23011VN 23031VN 23021VN 23041VN 23051

VN 28011VN 28031VN 28021VN 28041VN 28051

VN 28311VN 28331VN 28321VN 28341VN 28351

VN 35011VN 35031VN 35021VN 35041VN 35051

VN 35811VN 35831VN 35821VN 35841VN 35851

VN 43011VN 43031VN 43021VN 43041VN 43051

SAE Connection

6½" 7½“ 8“ 8“ 10“ 10“ 11½“ 10“ 11½“ 11½“ 14“ 11½“ 14“ 14“ 18“

Diam

eter

mm

abdmax

fh

215.920045

21870

241.3222.3

4521870

263.5244.5

45218

70

263.5244.5

5026675

314.4295.3

5026675

314.4295.3

6031690

352.4333.4

6031690

314.4295.3

7031698

352.4333.4

7031698

352.4333.4

85355119

466.7438.2

85355119

352.4333.4

95355132

466.7438.2

95355132

466.7438.2

95468132

571.5542.9

95468132

Bore k mm 6x9 8x9 6x11 6x11 8x11 8x11 8x11 8x11 8x11 8x11 8x13.5 8x11 8x13.5 8x13.5 6x17.5

Leng

ths

mm

l 1)

I1nos

40453525

8

40453525

8

52574725

8

5253433210

72,874643210

72,876654010

106,6110994010

72,8−*824010

106,6−*

1054010

106,6−*

1055510

92,4−*

1055512

106,6−*

1055510

92,4−*

1055512

92,4−*

1055415

82,7−*

1058020

Mas

s m

omen

t of

iner

tia k

g m

2

JA sideJBside 2)

0.00760.0036

0.01030.0036

0.01340.0038

0.02030.0079

0.03290.0083

0.04290.0186

0.05740.0199

0.04850.0235

0.06250.0245

0.08180.0547

0.20330.0546

0.08420.0855

0.19150.0849

0.29450.1265

0.72050.1255

Mass kg 2) 2.7 2.59 3.3 4.2 5.2 7.0 8.5 7.6 8.9 13.4 15.7 15.8 17.7 19.8 26.4

*) Dim l1 not applicable on this version

1) Dim. l can be modified by moving the connection ring within specified tolerances

2) at max. bore d

A side

Bores k

B side

A side

Bores K

B side

810-00004 810-00005Stromag Periflex® VN 183... 280


I 15Stromag +49 2303 102-0P-8462-SG-A4 | E-812-90000G 02/21


Tire

VN 43311VN 43331VN 43321VN 43341VN 43351

VN 43611VN 43631VN 43621VN 43641VN 43651

VN 43911VN 43931

−VN 43941VN 43951

VN 54411VN 54431VN 54421VN 54441VN 54451

VN 54911VN 54931VN 54921VN 54941VN 54951

VN 66611VN 66631VN 66621VN 66641VN 66651

VN 72611VN 72631VN 72621VN 72641VN 72651

SAE Connection

14“ 18“ 14“ 16“ 18“ 14“ 16“ 18“ 18“ 21“ 18“ 21“ 21“ 24“ 24“

Diam

eter

mm

ab

dmax

fh

466.7438.2

110468154

571.5542.9

110468154

466.7438.2

120468168

517.5489120468168

571.5542.9

120468168

466.7438.2

130−

185

517.5489130455185

571.5542.9

130455185

571.5542.9

160572225

673.1641.4

160572225

571.5542.9

180572300

673.1641.4

180572300

673.1641.4

190692270

733.4692.2

190692270

733.4692.2

250761350

Bore k mm 8x13.5 6x17.5 8x13.5 8x13.5 6x17.5 8x13.5 8x13.5 6x17.5 12x17.5 12x17.5 12x17.5 12x17.5 12x17.5 12x20 24x20

Leng

ths

mm

l 1)

I1nos

92.4−*

1058015

82.7−*

1058020

92.4−*

1058015

130.7135130

8020

130.7135130

8020

92.4−*

105658

130.7−*

1307025

130.7−*

1307025

130.7−*

1309020

140−*

13014025

130.7−*

1309015

140−*

15014025

213−*

190142

15

213−*

19014231

295−*

26017416

Mas

s m

omen

t of

iner

tia k

g m

2

Jª sideJB side2)

0.3530.230

0.6790.229

0.3750.306

0.5280.320

0.7010.320

0.2530.315

0.5120.333

0.7480.333

1.0230.890

2.2540.852

1.0091.299

2.0551.324

3.6082.578

4.2082.578

4.8656.296

Mass kg2) 28.7 33.4 33.4 38.4 40.7 30.9 38.8 42 62.2 75.6 77.2 91.7 131.5 136.3 213.8

*) Dim l1 not applicable on this version


2) at max. bore d

Stromag Periflex® VN...G Series

A side

Bores

A side

Bores

B side B side810-00001810-00000


I 16 P-8462-SG-A4 | E-812-90000GStromag +49 2303 102-0 02/21

Stromag Periflex® VP...G Series

B side

A side

Bores

Size Periflex® VP 433 Periflex® VP 436 Periflex® VP 439 Periflex® VP 544 Periflex® VP 549 Periflex® VP 666 Periflex® VP 726

Tire

VN 43311VN 43331VN 43321VN 43341VN 43351

VN 43611VN 43631VN 43621VN 43641VN 43651

VN 43911VN 43931

VN 43941VN 43951

VN 54411VN 54431VN 54421VN 54441VN 54451

VN 54911VN 54931VN 54921VN 54941VN 54951

VN 66611VN 66631VN 66621VN 66641VN 66651

VN 72611VN 72631VN 72621VN 72641VN 72651

SAE Connection

18“ 18“ 18“ 21“ 21“ 24“ -

Diam

eter

mm

abdmax

fh

571.5542.9

100468154

571.5542.9

110468168

571.5542.9

130455185

673.1641.4

160572225

673.1641.4

180572300

733.4692.2

190692270

995950250803350

Bore k mm 12x17.5 12x17.5 12x17.5 12x17.5 12x17.5 12x20.0 32x21.0

Leng

ths

mm

l 1)

nos

17516017020

180160170

20

180160180

25

24422022025

28520022025

286250276

31

370350324

32

Mas

s m

omen

tof

iner

tia k

g m

2

JA sideJB side2)

1.1860.439

1.2280.582

1.2050.568

3.1201.587

3.1322.384

7.7024.545

15.8508.730

Mass kg2) 61.7 70.0 67.3 125.0 151.0 229.6 367.4

1) Dim. l can be modified by moving the connection ring within specified tolerances2) at max. bore d

1 and d

2

810-00013


I 17Stromag +49 2303 102-0P-8462-SG-A4 | E-812-90000G 02/21

Stromag Periflex® VN...R Series

810-00006 810-00007

B side

A side

Bores k

B side

A side

Bores k


Tire

VN 18311VN 18331VN 18321VN 18341VN 18351

VN 23011VN 23031VN 23021VN 23041VN 23051

VN 28011VN 28031VN 28021VN 28041VN 28051

VN 28311VN 28331VN 28321VN 28341VN 28351

VN 35011VN 35031VN 35021VN 35041VN 35051

VN 35811VN 35831VN 35821VN 35841VN 35851

VN 43011VN 43031VN 43021VN 43041VN 43051

SAE- Connection

6½“ 7½“ 8“ 8“ 10“ 10“ 11½“ 10“ 11½“ 11½“ 14“ 11½“ 14“ 14“ 18“

Diam

eter

mm

abdmax

fh

215.9200

43218

61

241.3222.3

4321861

263.5244.5

4321861

263.5244.5

5026670

314.4295.3

50266

70

314.4295.3

5531675

352.4333.4

55316

75

314.4295.3

6531690

352.4333.4

6531690

352.4333.4

80355112

466.7438.2

80355112

352.4333.4

85355120

466.7438.2

85355120

466.7438.2

85468120

571.5542.9

85468120

Bore k mm 6x9 8x9 6x11 6x11 8x11 8x11 8x11 8x11 8x11 8x11 8x13.5 8x11 8x13.5 8x13.5 6x17.5

Leng

ths

mm

l 1)

I1nos

1089360458

108936045

8

1089360458

1139865

48.510

1139865

48.510

125110705510

125110

705510

158156105

5510

1581561054010

1601471055510

1601471055510

170164105

5510

1701641055512

178161105

8015

1781611058020

Mas

s m

omen

t of

iner

tia k

g m

2

JA sideJB

side2)

0.01250.0036

0.04290.0036

0.05390.0036

0.02860.008

0.0970.008

0.06170.0173

0.14210.0173

0.06340.0248

0.06250.0248

0.09980.0533

0.19800.0533

0.10280.0870

0.20630.0870

0.39250.1225

0.72050.1225

Mass kg2) 3.3 4.75 5.8 4.8 7.8 7.2 10.0 9.1 9.9 13.1 15.5 16.5 18.9 21.4 26.3



I 18 P-8462-SG-A4 | E-812-90000GStromag +49 2303 102-0 02/21

810-00007

B side B side

A side

Bores k

Stromag Periflex® VN...R Series


Tire

VN 43311VN 43331VN 43321VN 43341VN 43351

VN 43611VN 43631VN 43621VN 43641VN 43651

VN 43911VN 43931

VN 43941VN 43951

VN 54411VN 54431VN 54421VN 54441VN 54451

VN 54911VN 54931VN 54921VN 54941VN 54951

VN 66611VN 66631VN 66621VN 66641VN 66651

VN 72611VN 72631VN 76221VN 76241VN 72651

SAE Connection

14“ 18“ 14“ 16“ 18“ 14“ 16“ 18“ 18“ 21“ 18“ 21“ 21“ 24“ 24“

Diam

eter

mm

abdmax

fh

466.7438.2

100468145

571.5542.9

100468145

466.7438.2

110468155

517.5489110468155

571.5542.9

110468155

466.7438.2

130468182

517.5489130455182

571.5542.9

130455182

571.5542.9

160572225

673.1641.4

160572225

571.5542.9

150572220

673.1641.4

150572220

673.1641.4

190692270

733.4692.2

190692270

733.4692.2

250761350

Bore k mm 8x13.5 6x17.5 8x13.5 8x13.5 6x17.5 8x13.5 8x13.5 6x17.5 12x17.5 12x17.5 12x17.5 12x17.5 12x17.5 12x20.0 24x20.0

Leng

ths

mm

l 1)

I1nos

2091991258015

209199125

8020

233218130100

15

23321813010020

233218130100

20

207188130105

15

22720815012025

22720815012025

319.530621010515

319.530621010525

307293.5

21010520

307293.5

21010525

325310190142

15

32531019014231

427404260174

16

Mas

s m

omen

t of

iner

tia k

g m

2

JA sideJB

side2)

0.4190.241

0.7470.241

0.5220.320

0.6610.320

0.8500.320

0.5690.342

0.6860.342

0.9220.342

1.2351.024

1.9171.024

1.2411.162

1.9231.162

3.6082.623

4.2082.623

4.8656.447

Mass kg2) 32.2 37.1 38.6 41.0 43.5 39.9 43.9 47.1 78.6 51.2 80.6 88.2 133.2 138.0 218.0


2) at max. bore d

A side

Bores k


I 19Stromag +49 2303 102-0P-8462-SG-A4 | E-812-90000G 02/21


Tire

VN 43311VN 43331VN 43321VN 43341VN 43351

VN 43611VN 43631VN 43621VN 43641VN 43651

VN 43911VN 43931

VN 43941VN 43951

VN 54411VN 54431VN 54421VN 54441VN 54451

VN 54911VN 54931VN 54921VN 54941VN 54951

VN 66611VN 66631VN 66621VN 66641VN 66651

VN 72611VN 72631VN 76221VN 76241VN 72651

SAE Connection

14“ 18“ 14“ 16“ 18“ 14“ 16“ 18“ 18“ 21“ 18“ 21“ 21“ 24“ 24“

Diam

eter

mm

abdmax

fh

466.7438.2

100468145

571.5542.9

100468145

466.7438.2

110468155

517.5489110468155

571.5542.9

110468155

466.7438.2

130468182

517.5489130455182

571.5542.9

130455182

571.5542.9

160572225

673.1641.4

160572225

571.5542.9

150572220

673.1641.4

150572220

673.1641.4

190692270

733.4692.2

190692270

733.4692.2

250761350

Bore k mm 8x13.5 6x17.5 8x13.5 8x13.5 6x17.5 8x13.5 8x13.5 6x17.5 12x17.5 12x17.5 12x17.5 12x17.5 12x17.5 12x20.0 24x20.0

Leng

ths

mm

l 1)

I1nos

2091991258015

209199125

8020

23321813010015

23321813010020

23321813010020

207188130105

15

22720815012025

22720815012025

319.530621010515

319.530621010525

307293.5

210105

20

307293.5

210105

25

32531019014215

325310190142

31

427404260174

16

Mas

s m

omen

t of

iner

tia k

g m

2

JA sideJB

side2)

0.4190.241

0.7470.241

0.5220.320

0.6610.320

0.8500.320

0.5690.342

0.6860.342

0.9220.342

1.2351.024

1.9171.024

1.2411.162

1.9231.162

3.6082.623

4.2082.623

4.8656.447

Mass kg2) 32.2 37.1 38.6 41.0 43.5 39.9 43.9 47.1 78.6 51.2 80.6 88.2 133.2 138.0 218.0


2) at max. bore d

Stromag Periflex® VP...R Series

A side

Bores k

* with ring

B side

810-00014


Tire

VN 43311VN 43331VN 43321VN 43341VN 43351

VN 43611VN 43631VN 43621VN 43641VN 43651

VN 43911VN 43931

VN 43941VN 43951

VN 54411VN 54431VN 54421VN 54441VN 54451

VN 54911VN 54931VN 54921VN 54941VN 54951

VN 66611VN 66631VN 66621VN 66641VN 66651

VN 72611VN 72631VN 72621VN 72641VN 72651

SAE Connection

18“ 18“ 18“ 21“ 21“ 24“ -

Diam

eter

mm

abdmax

fh

571.5542.9

100468145

571.5542.9

110468155

571.5542.9

130455182

673.1641.4

160572225

673.1641.4

150572220

733.4692.2

190692270

995950250803350

Bore k mm 12x17.5 12x17.5 12x17.5 12x17.5 12x17.5 12x20.0 32x21

Leng

ths

mm

l 1)

I1noo1

s

344321250170

−20

3503352501904015

328308250180

−25

336312220220

−25

403382.5

300220

−25

390370250276

−31

514−

350324

−32

Mas

s m

omen

tof

iner

tia k

g m

2

Jª sideJB side2)

1.1860.453

2.2080.817

1.2050.651

3.2681.577

2.9522.119

7.7484.519

15.8509.070

Mass kg2) 66.3 86.4 79.7 126.4 149.0 228.2 379.3



I 20 P-8462-SG-A4 | E-812-90000GStromag +49 2303 102-0 02/21

Stromag Periflex® VN...S Series

Size Periflex® VN 183 Periflex® VN 230 Periflex® VN 280 Periflex® VN 283 Periflex® VN 350 Periflex® VN 358

Tire

VN 18311VN 18331VN 18321VN 18341VN 18351

VN 23011VN 23031VN 23021VN 23041VN 23051

VN 28011VN 28031VN 28021VN 28041VN 28051

VN 28311VN 28331VN 28321VN 28341VN 28351

VN 35011VN 35031VN 35021VN 35041VN 35051

VN 35811VN 35831VN 35821VN 35841VN 35851

SAE Connection

6½“ 7½“ 8“ 8“ 10“ 10“ 11½“ 10“ 11½“ 11½“ 14“ 11½“ 14“

Clamping bush

2012 2012 2012 2012 2012 2517 2517 3020 3020 3020 3020 3525 3525

Diam

eter

mm

abd*f

215.920050

218

241.3222.3

50218

263.5244.5

50218

263.5244.5

50266

314.4295.3

50266

314.4295.3

60316

352.4333.4

60316

314.4295.3

75316

352.4333.4

75316

352.4333.4

75355

466.7438.2

75355

352.4333.4

95355

466.7438.2

95355

Bore k mm 6x9 8x9 6x11 6x11 8x11 8x11 8x11 8x11 8x11 8x11 8x13.5 8x11 8x13.5

Leng

ths

mm

l 1)

nos

3031.8

258

3031.8

258

3031.8

258

3431.8

3210

3431.8

3210

44454010

41.5454010

51514010

51514010

56.5515510

56.5515512

67645510

67645512

Mas

s m

omen

tof

iner

tia k

g m

2

JA sideJB side

0.00760.0032

0.01030.0032

0.01340.0032

0.02030.0076

0.03290.0076

0.04830.0166

0.06210.0166

0.04850.0235

0.06250.0235

0.08180.0559

0.20300.0559

0.08420.1143

0.20400.1220

Mass kg 2.29 2.59 2.78 3.97 4.97 5.67 6.1 6.6 7.2 11.2 14.2 16.4 20.3

d* max. bore of the taper lock bushing1) Dim. l can be modified by moving the connection ring within specified tolerances

B side

A side

Bores k

A side

Bores k

B side

810-00010 810-00011


I 21Stromag +49 2303 102-0P-8462-SG-A4 | E-812-90000G 02/21

Stromag Periflex® VN...S Series

Size Periflex® VN 430 Periflex® VN 433 Periflex® VN 436 Periflex® VN 544

Tire

VN 43011VN 43031VN 43021VN 43041VN 43051

VN 43311VN 43331VN 43321VN 43341VN 43351

VN 43611VN 43631VN 43621VN 43641VN 43651

VN 54411VN 54431VN 54421VN 54441VN 54451

SAE Connection

14“ 18“ 14“ 18“ 14“ 16“ 18“ 18“ 21“

Clamping bush

3535 3535 4030 4030 4535 4535 4535 5040 5040

Diam

eter

mm

abd*f

466.7436.2

90468

571.5542.9

90468

466.7438.2

110468

571.5542.9

110468

466.7438.2

125468

517.5489125468

571.5542.9

125468

571.5542.9

125572

673.1641.4

125572

Bore k mm 8x13.5 6x17.5 8x13.5 6x17.5 8x13.5 8x13.5 6x17.5 12x17.5 12x17.5

Leng

ths

mm

l 1)

nos

87.5895415

100898020

78768015

78768020

85908015

85908020

85908020

99.510210520

99.510214025

Mas

s m

omen

tof

iner

tia k

g m

2

JA

sideJB side

0.29050.1425

0.72050.1425

0.4190.264

0.7470.264

0.4420.356

0.5790.356

0.7530.356

1.2351.086

2.2541.086

Mass kg 20.7 27.7 30.6 35.5 36 38.4 40.6 73.0 84.9

d* max. bore of the taper lock bushing1) Dim. l can be modified by moving the connection ring within specified tolerances

B side

A side

Bores k

A side

Bores k

B side

810-00010 810-00011


I 22 P-8462-SG-A4 | E-812-90000GStromag +49 2303 102-0 02/21

A side B side

Stromag Periflex® VN...W Series

810-00012

Size Periflex® VN 183 Periflex® VN 230 Periflex® VN 280 Periflex® VN 283 Periflex® VN 350 Periflex® VN 358

Tire

VN 18311VN 18331VN 18321VN 18341VN 18351

VN 23011VN 23031VN 23021VN 23041VN 23051

VN 28011VN 28031VN 28021VN 28041VN 28051

VN 28311VN 28331VN 28321VN 28341VN 28351

VN 35011VN 35031VN 35021VN 35041VN 35051

VN 35811VN 35831VN 35821VN 35841VN 35851

Diam

eter

mm

d1max

d2max

efh1

h2

4343

2222186161

5050

271266

7070

5555

322316

7575

6565

322316

9090

8080

360355112112

8585

360355120120

Leng

ths

mm

l 1)

n¹n2

op

17460605358

1866565

58.563

20370706568

280105105

75103

27910510571

103

289105105

71103

Mas

s m

omen

tof

iner

tia k

g m

2

JA side2)

JB

side2)

0.02820.0038

0.07160.0080

0.14680.0177

0.19200.0275

0.31900.0530

0.32900.0870

Mass kg2) 6.6 9.4 15.2 22.1 30.1 33.8


1 and d

2


I 23Stromag +49 2303 102-0P-8462-SG-A4 | E-812-90000G 02/21

Stromag Periflex® VN...W Series

810-00012

A side B side

Size Periflex® VN 430 Periflex® VN 433 Periflex® VN 436 Periflex® VN 439 Periflex® VN 544 Periflex® VN 549 Periflex® VN 666 Periflex® VN 726

Tire

VN 43011VN 43031VN 43021VN 43041VN 43051

VN 43311VN 43331VN 43321VN 43341VN 43351

VN 43611VN 43631VN 43621VN 43641VN 43651

VN 43911VN 43931

VN 43941VN 43951

VN 54411VN 54431VN 54421VN 54441VN 54451

VN 54911VN 54931VN 54921VN 54941VN 54951

VN 66611VN 66631VN 66621VN 66641VN 66651

VN 72611VN 72631VN 72621VN 72641VN 72651

Diam

eter

mm

d1max

d2max

efh1

h2

8585

475468120120

100100475468145145

110110475468155155

130130475468182182

160160584572225225

150150584572220220

190190683692270270

otherdimensionson request

Leng

ths

mm

l 1)

n1

n2

op

297105105

86103

352125125100123

381130130120128

352130130125125

548210210140206

533210210125206

536190190169

183.5

Mas

s m

omen

tof

iner

tia k

g m

2

JA side2)

JB side2)

1.0150.123

1.2710.241

1.3500.318

1.3850.352

3.6481.024

3.4861.200

8.9852.623

Mass kg2) 47.8 69.3 75.7 81.6 158.0 162.6 254.8


1 and d

2


I 24 P-8462-SG-A4 | E-812-90000GStromag +49 2303 102-0 02/21

B sideA side


Tire

VN 43311VN 43331VN 43321VN 43341VN 43351

VN 43611VN 43631VN 43621VN 43641VN 43651

VN 43911VN 43931

VN 43941VN 43951

VN 54411VN 54431VN 54421VN 54441VN 54451

VN 54911VN 54931VN 54921VN 54941VN 54951

VN 66611VN 66631VN 66621VN 66641VN 66651

VN 72611VN 72631VN 72621VN 72641VN 72651

Diam

eter

mm

d1max

d2max

efh1

h2

100100475468145145

110110526468155155

130130526455182182

160160683572225225

150150683572220220

190190744692270270

other dimensionson request

Leng

ths

mm

l 1)

n1

n2

op

519250160190155

524250160209155

503250160175155

569220210247206

618300200227188

659250250303242

Mas

s m

omen

tof

iner

tia k

g m

2

JA sideJB side2)

1.7440.612

2.8190.603

2.1710.651

8.1011.577

7.9162.078

15.1774.519

Mass kg2) 102.6 128.0 98.0 234.4 255.8 378.3


2) at max. bore d1 and d

2

Stromag Periflex® VP...W Series

810-00015


I 25Stromag +49 2303 102-0P-8462-SG-A4 | E-812-90000G 02/21

TKN

The coupling’s nominal torque can be permanently transferred over the whole permitted speed range.It must be higher than the system’s nominal torque TN

TKN ≥ TN

An application factor of 1.2 is recommended for the simple design of a drive system based exclusively on the nominal torque. TKN ≥ TN • 1,2

TKmax

The coupling´s max torque TKmax can be endured as a peak load and may not be exceeded by peak torques Tmax1 when the system is operating in normal, nonstationary mode.

A system’s normal nonstationary modes are unavoidable and occur repeatedly (e.g. starting/stopping, resonance passes, switchovers, accelerations, etc.).

TKmax ≥ Tmax1

Overloading the Stromag Periflex® VN coupling with peak torques Tmax2 in a system’s anomalous nonstatio-nary mode shortens the service life and is tolerated in individual cases.

A system’s anomalous nonstationary modes are avoidable and are not part of the planned operating sche-me (e.g. emergency stops, sync failure, short circuits, etc.).

TKmax

• 1,5 ≥ Tmax2

TKw

The admissible permanent alternating torque indicates the amplitude of the admissible permanent periodic torque variation. This torque may be superimposed on a base load of TKN.

In this process, the maximum damping power PKV must also be checked.

Ψ

The relative damping is a measure of the ability of the coupling to convert part of the vibration energy into heat.

The Ψ data relate to a coupling torque of 0.8 • TKN, an alternating torque of 0.2 • TKN, and a frequency of 10 Hz on a coupling at operating temperature, with a surface temperature of about 30°C.

Pkv

The admissible damping power indicates how much damping (heat) the coupling can permanently absorb resp. dissipate.The sum of the damping power of each vibration order (i.e. ΣPVi)) must be less than the damping power of the coupling.

Pvi =π

2πΨ

2+1

Twi2 • fi

Ctdyn•

PKV ≥ ΣPVi

The stated value PKV60 describes the damping power which can be absorbed over the period of 1 hour. To determine the damping power which can be permanently absorbed (PKV ∞),the value PKV60 has to be multiplied by the factor 0.5. With an ambient temperature TU higher than 30ºC, the admissible damping power must be reduced by the temperature factor SϑPKV.

PKV (TU) =PKV

SϑPKV

Characteristics


I 26 P-8462-SG-A4 | E-812-90000GStromag +49 2303 102-0 02/21

Temperature factors SϑPKV

Temperature factors shall take into consideration the reduction of the physical characteristics of rubber-flexible material caused by heating.

The coupling temperature is determined by the ambient temperature plus an internal heating caused by internal material friction in the rubber volume, resulting from alternating torques and alternating loads due to shaft offsets.

With higher ambient temperatures the coupling characteristic value PKV must be reduced through the corresponding temperature factor SϑPKV.

∆Ka

Maximum axial displacement of the coupling. The shafts’ axial displacement ∆Wa must be less than ∆Ka.

The axial displacement for Stromag Periflex® VN couplings depends on the installed connection ring. The disc tire must always lie over its full width in the connection ring.

∆Ka ≥ ∆Wa

∆Kr

Maximum radial displacement of the coupling.The shafts’ radial displacement ∆Wr must be less than ∆Kr.

∆Kr ≥ ∆Wr

∆Kw

Maximum angular displacement of the coupling. The shafts’ angular displacement ∆WW must be less than ∆KW.

A ∆KW value of 0.5° is permitted for Periflex® VN couplings. This value, however, may be utilised to the full only when there are no other options for shaft displacement.

∆Kw ≥ ∆Ww

∆Wr

∆Wa

∆Ww

Characteristics

4.0Temp-Factor 1/SϑPKV

3.5

3.0

2.5

2.0

1.5

1.0

0.5

20 30 40 50 60 70 80 90

Ambient temperature [°C]

Tem

per

atur

e fa

cto

r S

ϑP

KV [-

]


I 27Stromag +49 2303 102-0P-8462-SG-A4 | E-812-90000G 02/21

Ca

The axial spring stiffness represents the ratio of axial reaction force to axial displacement.

Stromag Periflex® VN couplings do not generate axial forces when the disc tire lies over its full width in the connection ring.

Ca = 0

Cr

The radial stiffness represents the ratio of radial reaction force to radial displacement. The specified values apply to the coupling at operating temperature, with a surface temperature of about 30°C.

CTdyn

The dynamic torsional spring stiffness represents the ratio of torque amplitude to torque angle during an oscillation.

The torque amplitude is superimposed on an initial load (coupling torque). The Stromag Periflex® VN coupling’s CTdyn value remains constant over the coupling torque (linear characteristic curve), but changes with the amplitude, frequency, and temperature of the flexible element.

The specified nominal values for CTdyn are based on a coupling torque of 0.8 • TKN, an alternating torque of 0.2 • TKN, and a fre-quency of 10 Hz on a coupling at operating temperature, with a surface temperature of about 30°C.

CTdyn warm

takes into account that high power dissipation causes the coupling to heat up.CTdyn warm = 0.7 • CTdyn

CTdyn A

takes into account the effects of a small alternating torque amplitude.CTdyn A = 1.35 • CTdyn

Calculations of torsional vibrations in the system are recommended to include CTdyn warm (0.7), und CTdyn A (1.35)

Characteristics


I 28 P-8462-SG-A4 | E-812-90000GStromag +49 2303 102-0 02/21

MAIN ENGINE

Engine type (electric, combustion engine, etc.)

Engine full designation

Engine installation (rigid or flexible)

Engine housing (SAE)

Flywheel connection Inch

Engine mass moment of inertia kgm²

Flywheel mass moment of inertia (for cumbustion engine) kgm²

Nominal power kW

Nominal speed rpm

Speed range (if application operates within a speed range) rpm

Maximum torque (breakdown torque) Nm

GEAR

Gear ratio

Moment of inertia kgm²

CARDAN SHAFT

Type of cardan shaft deflection ("z" or "w")

Cardan shaft type (manufacturer, size)

Deflection angle °

Moment of inertia kgm²

Length of the cadan shaft mm

DRIVEN SIDE

Type (generator, fan, compressor, fixed or variable pitch propeller)

Main or auxiliary drive

Type of construction (free-standing or flange-mounted?)

Free-standing type (rigid or flexible installation?)

Number of blades (in case of propeller application)

Moment of inertia of driven side kgm²

Shaft length (l) and diamter (d) mm

COUPLING

Location in the drive train (enclose schematic diagram)

Bore dimension for coupling hub mm

Ambient temperature near the coupling °C, °K

Maximum permissible coupling length mm

Classification society

ATEX certification

Ice class

Coupling Design, question sheet


I 29Stromag +49 2303 102-0P-8462-SG-A4 | E-812-90000G 02/21

Applications Group II (above ground)

Potentially explosive atmosphere of air and

gas

dust

Zone (Category)gas

Zone 1 (Category 2G)

Zone 2 (Category 3G)

dust Zone 22 not electrically conducting (Category 3D)

Temperature category in atmosphere with gas

gas

T1

T2

T3

T4

Max surface temperature dust

125 °C

< 120 °C

-20 °C to + 40 °C

Ambient temperature other ambient temperatures only with certain restrictions

Use in potentially explosive environments, question sheet


I 30 P-8462-SG-A4 | E-812-90000GStromag +49 2303 102-0 02/21

Notes

OTHER PRODUCT SOLUTIONS FROM ALTRA MOTIONOur comprehensive product offerings include various types of clutches and brakes, overrunning clutches, engineered bearing assemblies, gearing and gear motors along with linear motion products, belted drives, couplings, limit switches, precision motors, drives & controls, miniature motors and engine braking systems.With thousands of product solutions available, Altra provides true single source convenience while meeting specific customer requirements. Many major OEMs and end users prefer Altra products as their No. 1 choice for performance and reliability.

WWW.ALTRAMOTION.COM

Premier Industrial Company Leading Brands

Engine Braking SystemsJacobs Vehicle Systems

Linear SystemsThomson

Specialty ComponentsKilianStromagTB Wood’s

Miniature MotorsPortescap

Precision Motors& AutomationKollmorgen

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Heavy Duty Clutches & BrakesIndustrial ClutchStromagSvendborg BrakesTwiflexWichita Clutch

Overrunning ClutchesFormsprag ClutchMarland ClutchStieber

Engineered Couplings & Universal JointsAmeridrivesBibby TurboflexGuardian CouplingsHucoLamiflex Couplings StromagTB Wood’s

Gear Drives & Gear MotorsBauer Gear MotorBoston Gear Delroyd Worm GearNuttall Gear

Altra Motion

www.stromag.com P-XXXX-XX-A4 X/XX

The Brands of Altra Motion

Couplings

Ameridriveswww.ameridrives.com

Bibby Turbofl ex www.bibbyturbofl ex.com

Guardian Couplingswww.guardiancouplings.com

Hucowww.huco.com

Lamifl ex Couplingswww.lamifl excouplings.com

Stromag www.stromag.com

TB Wood’swww.tbwoods.com

Linear Systems

Thomsonwww.thomsonlinear.com

Geared Cam Limit Switches

Stromagwww.stromag.com

Engineered Bearing Assemblies

Kilianwww.kilianbearings.com

Electric Clutches & Brakes

Matrixwww.matrix-international.com


Warner Electricwww.warnerelectric.com

Belted DrivesTB Wood’s www.tbwoods.com

Heavy Duty Clutches & Brakes

Twifl exwww.twifl ex.com


Svendborg Brakeswww.svendborg-brakes.com

Wichita Clutchwww.wichitaclutch.com

Gearing & Specialty Components

Bauer Gear Motorwww.bauergears.com

Boston Gearwww.bostongear.com

Delevanwww.delevan.com

Delroyd Worm Gearwww.delroyd.com

Nuttall Gearwww.nuttallgear.com

Engine Braking Systems

Jacobs Vehicle Systemswww.jacobsvehiclesystems.com

Precision Motors & Automation

Kollmorgenwww.kollmorgen.com

Miniature Motors

Portescapwww.portescap.com

Overrunning Clutches

Formsprag Clutchwww.formsprag.com

Marland Clutchwww.marland.com

Stieberwww.stieberclutch.com

Neither the accuracy nor completeness of the information contained in this publication is guaranteed by the company and may be subject to change in its sole discretion. The operating and performance characteristics of these products may vary depending on the application, installation, operating conditions and environmental factors. The company’s terms and conditions of sale can be viewed at http://www.altramotion.com/terms-and-conditions/sales-terms-and-conditions. These terms and conditions apply to any person who may buy, acquire or use a product referred to herein, including any person who buys from a licensed distributor of these branded products.

©2021 by Stromag LLC. All rights reserved. All trademarks in this publication are the sole and exclusive property of Stromag LLC or one of its affi liated companies.

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Asia Pacifi c

China

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P-8462-SG-A4 | E-812-90000G 02/21

Documents

Stromag Periflex VN Disc Couplings