Smith Bearing

5/27/2018 Smith Bearing

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P r o d u c t C a t a l o g

SMITH BEARING

accurate bushing co.SMITH BEARING is a registered trademark of

Cam Followers, Needle Bearings, Bushings and Special Assemblies for Aerospace & Industrial Applications

Accur acy i s Our Best Pol icy


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All products in this catalog subject to Ac curate Bushing Company terms and conditions, a copy o f which is available in the

back of this catalog or may be requested from the c ustomer service department.

SMITH Bearing, SMITH-TRAX, & SM ITH-ALIGN are registered trademarks of Ac curate Bushing Com pany.Copyright 2004 Accurate Bushing Comp any. All rights reserved.

Smith Bearing is a registered trademark of Accurate Bushing Company. With over 50 years

experience in designing and manufacturing precision needle roller bearings, we can handle your

requirements for standard aerospace and industrial bearings, as well as custom manufactured

special bearings, assemblies, and bushings.

In this catalog you will find our complete range

of precision bearings including:Cam Follower Needle Roller Bearings in Inch &Metric sizes, Stainless Steel Cam Followers forspecial corrosive applications, Cam Followerswith self-lubricating engineered plastic bushingSmith-Trax with tapered roller bearings anddeep-groove ball bearings for high-thrust loadapplications, Aerospace and Military approveNeedle Roller Bearings for engine and airframeapplications, Spherica l Plain Bearings, Drill J igBushings and Specialty Aerospace productsand assemblies.

As well as our existing product line, we are ready to assist you with the manufacture of custom made

products, prec ision mac hine components and assemblies. ISO 9001 and AS 9100 registered.

Smith Bearingserves the global market place with a network of Industrial and Aerospace distributors,

manufacturing plants and sales offices throughout the world. The structure of our operation affords us theability to give highly personalized attention to every customer. Most importantly, this structure gives us theability to respond immediately to our customers request as well as providing highly cost-effective products

Email: [email protected] Phone: 800.932.0076

Standard & Custom Bearings and Special Assemblies

for Aerospace & Industrial Applications

CORPORATE HEADQUARTERS

4 4 3 No rth Avenu e

Garw oo d NJ 0 7 0 2 7 USA

tel: 908.789.1121fax: 908.789.9429

800.932.0076

accurate bushing co.SMITH BEARING i s a r e g i s t e r e d t r a d e m a r k o f


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CORPORATE HEADQUARTERS

4 4 3 No rth Avenu e

Garw oo d NJ 0 7 0 2 7 USA

tel : 908.789.1121fa x : 908.789.9429

800.932.0076

www.smi thbear ing.com

www.accura tebush ing.com

Standard & Custom Bearings and Special Assembliesfor Aerospace & Industrial Applications

All products in this catalog subject to Ac curate Bushing Company terms and conditions, a copy of which is available in

the back of this catalog or may be requested from the c ustomer service department.

SMITH Bearing, SMITH-TRAX, & SM ITH-ALIGN are registered trademarks of Ac curate Bushing Com pany.Copyright 2004 Accurate Bushing Com pany. All rights reserved.

accurate bushing co.SMITH BEARING i s a r e g i s t e r e d t r a d e m a r k o f


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SMITH BEARINGNeedle Bearings,

Bushings and Special

Assemblies for

Aerospace & Industrial

Applications

CAM FOLLOWERS: (Needle Rollers) Yoke Type & Stud Type

Inch Sizes

Metric Sizes

Stainless Steel

Bearings with

Non-Metallic Bush

SMITH-TRAX Bearings

Inch Sizes

Metric Sizes

Stainless Steel

CUSTOM ENGINEERED PRODUCTS & ANCILLARY BEARINGS

Inner Ring Races

Chain Rollers

Spherical Plain Bea

AEROSPACE BEARINGS

MS21438 MS

MS21439 MS

MS24465 MS

MS24466

DRILL JIG BUSHINGS

We offer a complete line of stud type and yoketype cam followers for industrial applications. Thesebearings are available in steel, stainless steel, andwith engineered plastic internal bushings. Wespecialize in engineered cam followers to fitspecific applications.

The SMITH-TRA X special duty track roller bearingsare machined from high-alloy steel and are case-hardened for maximum longevity. These bearings

are fitted with deep-groove ball bearings or taperedroller bearings to handle both high radial and thrustload applications.

We are approved to manufacture bearings to militaryand aerospace specifications. The bearings weproduce meet the standards of AS-3990. Our enginebearings are currently used in thrust reversers, afterburners and divergent nozzles. Our airframe bearingsare used in flap-tracks, canopies and landing gear.

We will manufacture custom design bearingsin small and large quantities to meet yourspec ifications. Please contac t our engineeringdepartment with your requirements.

is a registered trademark of ABC Accurate Bushing Company

ABC Drill J ig Bushings are manufac tured to ANSI standardtolerances and produced from select steels known for theirlong wear and stability. Spec ial bushings are available.

www.smithbearing.com tel. 800.932.0076 fax. 908.78


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Table of Contents

1

Inch Sizes 11

CR Inch S tud Type Screwdriver Unsealed 12

CR-X Inch Stud Type S crewdriver Sealed 12

CR-B Inch S tud Type Hex-Drive Unsealed 13

CR-XB Inch Stud Type Hex-Drive Sealed 13

CR-XBE Eccentric C rowned & Uncrowned 14-15

HR Inch H eavy Stud Screwdriver Unsealed 16

HR-X Inch H eavy Stud Screwdriver Sealed 16

HR-B Inch H eavy Stud Hex -Drive Unsealed 17

HR-XB Inch Heavy Stud Hex -Drive S ealed 17

YR Inch Yoke Type U nsealed 18

YR-X Inch Yok e Type Sealed 18

Inch Sizes Crowned 19

CR-C Inch S tud Type Screwdriver U nsealed C rowned 20

CR-XC Inch S tud Type Screwdriver S ealed C rowned 20

CR-BC Inch Stud Type Hex-Drive Unsealed C rowned 21

CR-XBC Inch Stud Type H ex-Drive S ealed C rowned 21

HR-C Inch H eavy Stud Screwdriver Unsealed C rowned 22

HR-XC Inch H eavy Stud Screwdriver Sealed C rowned 22

HR-BC Inch Heavy Stud Hex-Drive U nsealed C rowned 23

HR-XBC Inch Heavy Stud Hex-Drive S ealed C rowned 23

YR-C Inch Size Yoke Type Unsealed C rowned 24

YR-XC Inch Size Yoke Type S ealed C rowned

DCR Double Row Heavy Roller Stud Type Interchange 26

DYR Double Row Heavy Roller Yoke Type Interchange 27

Interchange Tables: Cam Followers - INCH Sizes - Yoke Type & Stud Type Unsealed 28Cam Followers - INCH Sizes - Yoke Type & Stud Type Sealed 29

Inch Sizes Stainless Steel

CR-SS Inch S tud Type Screwdriver Unsealed 30

CR-X-SS Inch Stud Type S crewdriver Sealed

CR-B-SS Inch Stud Type Hex D rive Unsealed 31

CR-XB-SS Inch Stud Type H ex Drive S ealed

YR-SS Inch Yoke Type U nsealed 32

YR-X-SS Inch Yok e Type Sealed

Interchange Tables: Cam Followers - Stainless Steel 33

SECTION 1: CAM FOLLOWERS: (Needle Rollers) Yoke Type & Stud Type

CAPABILITIES & ENGINEERING 1-10

A tel. 800.932.0076 fax. 908.789.9429 www.smithbearing.com


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1

Inch Sizes With Non-Metallic Bushing

BCR Inch S tud Type Screwdriver Unsealed 34

BCR-X Inch Stud Type S crewdriver Sealed

BCR-B Inch Stud Type H ex Drive Unsealed 35

BCR-XB Inch Stud Type H ex Drive Sealed

BYR Inch Size Yoke Type Unsealed 36

BYR-X Inch Size Yoke Type Sealed

Interchange Tables: Cam Followers - Non-Metallic Bushing 37

Metric

MCR M etric S tud Type U nsealed C aged 38-39

MCR-S M etric S tud Type Sealed C aged

MCRV M etric Stud Type Unsealed Full Complement

MCRV-S M etric Stud Type Sealed Full C omplement

MYR M etric Yok e Type U nsealed C aged 40

MYR-S M etric Yoke Type Sealed C aged

MYRV M etric Yoke Type Unsealed Full Complement

MYRV-S M etric Yoke Type S ealed Full C omplement

NUKR M etric Yoke Double R ow Heavy Roller Full C omplement Interchange 41

MUTD M etric Stud Double Row Heavy R oller Full C omplement Interchange 42

Interchange Tables: Cam Followers - METRIC Sizes - Yoke Type & Stud Type 43

Inch Sizes SMITH-TRAX Bearings 44-45

PCR Inch P lain Stud Type 46

FCR Inch Flange Type 47

VCR Inch V-Grooved Stud Type 48

UCR Inch U -Grooved Stud Type 49

PYR Inch P lain Yoke Type 50

FYR Inch Flange Yoke Type 51

VYR Inch V-Grooved Yoke Type 52

Metric SMITH-TRAX Bearings 53

MPCR M etric P lain Stud Type 54

MFCR M etric Flange Type 55

MVCR M etric V-Grooved Stud Type 56

MPYR M etric P lain Yoke Type 57

MFYR M etric Flange Yoke Type 58

MVYR M etric V-G rooved Yoke Type 59

Interchange Tables: Inch & Metric Smith-Trax 60-61

SECTION 2: SMITH-TRAX Bearings

SMITH BEARING is a registered trademark of ABC Accurate Bushing Company

www.smithbearing.com tel. 800.932.0076 fax. 908.789.9429


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Table of Contents (continued)

IRR Inner R ing Races Interchange 63

YR C hain Rollers 64

GEZ Spherical Plain Bearings 65

MS21438/ YAF Airframe N eedle Bearings Track Rollers - Single R ow 68

MS21439/ YAT Airframe N eedle Bearings Track R ollers - Double Row 68

MS24465/ YAD Airframe N eedle Bearings Track R ollers - Single Row 69

MS24466/ YAS Airframe N eedle Bearings Track R ollers - Double Row 69

MS24461/ YAG Airframe Needle Bearings - Single Row 70-71

MS21432/ HRS Airframe N eedle Bearings Integral Stud 72

MS21447/ CHRS Airframe N eedle Bearings Integral Stud - Crowned 73

Interchange Tables: Aerospace Bearings 74-75

SEB/SEBF Series Spherical Slotted Entry Bearings 76-77

F Series Spherical Smith-Align Bearings 78

Fractional Chart 80

Type P Headless Press-Fit 82-83

Type H Head Press-Fit 84-85

Type F Fixed Renewable 86-87

Type SF Slip-Fixed Renewable 88-89

Type L Headless Liner 90

Type HL Head Liner 91

Miscellaneous Hardware 92

Cam Followers (Needle Rollers) Yoke & Stud Type Inch & Metric 94-99

Smith-Trax 100-101

Aerospace 102-103

104-107

108

SECTION 3: ANCILLARY BEARINGS 6262

SECTION 4: AEROSPACE BEARINGS General Information 66-67

SECTION 5: DRILL JIG BUSHINGS General Information 81

SECTION 7: INTERCHANGE TABLES 93-103

C

Blank Note Pages

tel. 800.932.0076 fax. 908.789.9429 www.smithbearing.com

SMITH BEARING is a registered trademark of ABC Accurate Bushing Comp

Terms & Conditions


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E N G I N E E R I N G C A P A B I L I T I E

MACHINERY & TESTING FACILITIESSmith Bearinghas a fully-integratedmanufacturing facility capable of produc inghigh-precision needle roller bearings for both theAerospac e and Industrial market. Our computerized(CNC) grinding and precision machining centers,considered to be the most advanced in the industryare capable of manufacturing a wide range ofproducts to exacting tolerances in order to meetthe needs of our customers. Our advancedmetallurgical department routinely verifies andtests all raw materials, plating and heat-treatingprocesses used in the manufacturing of ourproducts. This careful analysis and scrutiny ineach phase of our procedure assures proper

conformance to all Aerospace requirements andguarantees that only materials meeting our rigidstandards are used in Smith Bearingproducts.

ENGINEERINGExtensive experience in our engineering departmentallows Smith Bearing to work closely with end-users and OEMS (original equipment manufactures)in order to offer the best solution for their bearingrequirements. Smith Bearingengineers haveextensive knowledge of available metallurgies sothat they may offer customers their experience todetermine the best suitable material for a specialdesign and application. Smith manufacturesbearings in a wide range of materials includinghigh-carbon a lloy steels, stainless steels, tool steels,

and other exotic alloys.

CUSTOM ASSEMBLIESSmith Bearinghas the ability to manufac ture avariety of custom bearing assemblies. Typicallythis entails the precision machining of a bearinghousing and the assembly of needle or ball bearingsinto the housing. By controlling the entire designand manufacturing process of a custom order,Smith Bearingguarantees the quality, perfor-mance, and delivery of an assembly. Smith Bearingperforms all aspects of such projects from design tofinish including the machining process, applicationsof special coatings and plating, assembling andtesting of the final product.

QUALITY & DEPENDABILITYSmith Bearinghas received both ISO 9001and AS 9100 quality registrations in recognition ofour continued commitment to world-class qualitycontrol systems. Our quality system is rec ognizedby General Electric, Lockheed, Boeing AircraftCorporation, British Aerospace, as well as manyother military and aerospace companies. OurMilitary bearings meet the requirements ofMil-B-3990 (SAE AS 39901). This level of qualitycertifications and approvals assures our customersunequaled dependability of our products.



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G E N E R A L I N F O R M A T I O N E N G I N E E R I N G

2

SM ITH C a m Followe rs are anti-friction needleroller bearings developed for use in cam ortrack roller applications. They were specificallydesigned and built to handle intermittentshock and heavy loads. Full compliment (non-caged) needle bearings maximize the radialload carrying capability while the soft innercore of the stud gives these cam followers theability to absorb extreme shock loads withoutfracturing.

In addition to standard models, specialbearings are manufactured to customerspecification for unique applications.It is often found that the use of specialbearings reduces machine costs andimproves performance. We have the abilityto economically manufacture custombearings in small or large volumes. Pleasecall us to discuss your special applications.

Material Selection

The common material selection for needleroller bearings are high-strength bearing steel(SAE 52100) or carburized low-carbon alloysteels. These materials give us an excellentcombination of strength and economy andare more than sufficient for the majority of

industrial applications.

High-Temperature & Corrosive Applications:

In extreme applications where bearings arebeing subjected to high-temperature orcorrosive environments, alternative materialsor special platings must be considered.Smith Bearing manufac tures needle rollerbearings in a wide variety of high-temperatureand corrosive resistant exotic alloys including440-C stainless steel and M-50, M-2, M-10tool steels.

Corrosion resistant plating is effective when usingbearings in corrosive environments. Non-bearing

surfaces such as inner rac es and end washersare cadmium plated to resist corrosion. Theouter rac es of the bearings are typically hard-chrome plated to resist wear as well as corrosion.

REG ULAR STUD TYPE

are recommended where loads andshock are moderate. Bearing capacity othe C R Series is limited by their moderatelysized stud. See capacity ratings.

HEAVY STUD TYPEare recommended for applications withhigh-loads and/or heavy shock and wheredeflection should be held to a minimum.Rollers and outer races are identical to thestandard CR Series.

YO KE TYPEhave similar internal construction to the sttype CR Series except the inner race is mafor shaft or clevis mounting. Generally,heavier loads can be supported by the yo

mounting arrangement, since stud deflecis removed from consideration.

HEX- DRIVE SO C KETare favorable for most applicationswhere the bearing is installed in a blind orthreaded hole. The Hex-drive allows formore secure installation and easier removof the cam follower.

SCREWD RIVER SLO TScrew-driver slot configuration is normallysufficient for most applications.

Construction of Standard Needle RollersCam Follower materials and finishes are selected toprovide a minimum of friction and to assure dependableperformance for the required service life.

O UTER RA C E High-carbon chrome bearing steel (SAE 521hardened and ground.

IN NER RAC ES are manufactured from low-carbon alloysteel, carburized, and case hardened on the racewayarea. This gives the inner race two very key characteristi1) : Tremendous strength and forgiveness when subject totensile, shear, and other bending stresses and 2) : extremhardness on the wear area for long bearing life. The stud

are metallurgica lly designed not to fracture or fail whensubject to intermittent shock and heavy loads found incam follower applications.

N EEDLE RO LLERS are made from high-carbon chromebearing steel. They are through-hardened, ground andlapped for ultimate life and performance.

RETA IN IN G WA SHERS are made from low-carbon alloy steand case-hardened. This gives both a hardened and sminternal surface that is desirable for proper cam followerperformance. The soft core of the end washer resists fracduring use.

Various Needle Rollers - Stud & Yoke Type

CR Series

HR Se ries

YR Serie s

Add Suffix B

Cam Followers Stud & Yoke Type

Standard



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E N G I N E E R I N G G E N E R A L I N F O R M A T I O

Cam Followers with a Press Fit EccentricSleeve provide correct alignment andadjustment without costly preparation ofclose tolerance mounting holes andmembers. They eliminate problems ofclearances, preloading and wearcompensation and assure load sharing inmultiple cam follower applications. Thehex-drive socket allows positive torque forlocking and adjustment. A lock nut willnormally provide adequate clamping tohold bearing and eccentric sleeve in theirproper position. When permanent locking ofeccentric sleeve is required, drill through thehousing, eccentric sleeve, and bearing studand secure with a dowel or set-screw.

In-l ine Ad justme nt Al low sG rea ter Loc a t ion To lerance

for M ounting Holes

C o n t ro l o f C le a ra n c e a n dAdjustme nt for Wea r

EC C ENTRIC C AM FOLLO WERS

Ad d Suffix E

The ec ce ntric sle eveal lows for easy radialpo sitioning for stud- typec a m fo l low ers.

CROWNED CAM FOLLOWERS

Ad d Suffix C

Cr o w n e d o u te r ra c e s a rere c o m m e n d e d w h e n th et ra ck is not exa ct ly a ligne da n d sq u a re w i th th e c a m

fol lowe r. Crow ned outerraces reduce undesi rablethrust loa d s on the rollersw h e n tra c k - b e a rin g m is-a lig n m e n t h a p p e n s to o c c u r .This incre a se s life a ndre l ia bi li ty o f the b e a ring.

Available in stud type andyoke type cam followers.

Eccentric Sleeves Allow for Radial Location Adjustment of Cam Followers

Typ ica lSe a l

Configuration

SEALED C AM FOLLO WERS

Ad d Suffix X

Sea ls provide a n e ffe ct ivem e a ns of prote ct ion from

o u tsid e co n tam ina t io n a n densure lubricant retention.

Availab le in stud type and yoketype cam followers.

Sealed cam followers are furnished withmolded-acetyl full-contact seals containedwithin the outer race undercuts at both endsof the bearing. This is a low-friction material

which keeps drag to a minimum yet is stableand unaffected by corrosive agents orlubricants. A small vent hole in the sealsallows for purging during relubrication withoutcausing seal displacement. The outer race onsealed c am followers is provided with amachined groove in the bore, which ac ts asa grease reservoir to extend time periodsbetween relubrication. All sealed bearingsare d imensionally interchangeable with theunsealed configuration of the same series.

Unwanted edge loading of needlebearings causes skewing and endthrusting of the needles which contributeto premature bearing failure. In situationswhere it is impractical or too costly toprovide for perfect alignment, crowned

bearing O.D.s provide compensation formisalignment between the cam followerand the surface of a slanted track or cam.The radius also eliminates skidding of theouter race when bearing is on contactwith a flat, circular cam.

Crowned Outer Races Reduce Edge Loading when Bearing/ Track are Misalig

Seals Provide Protection Against Contamination & Loss of Lubricant

EcceSlee

Seal

Cam Followers Stud & Yoke Ty



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4


Lubrication

Cam Followers and Cam Yoke Rollers arepacked at the factory with a petroleum-base,lithium grease with extreme pressure andcorrosive resistant additives. This lubricant issuitable for most bearing applications withina temperature range of -30F to 250F.Re-lubrication in service can be accomplishedwith any non-soap based roller bearing greaseor oil. Special greases or oils can be specifiedif required.

Frequency of lubrication will depend upon

the speed of bearing rotation, contaminantspresent in the application and the type oflubricant used. In continuously rotatingapplications, constant oil lubrication or frequentgrease lubrication may be necessary.

Stud-Type Cam Followers can bere-lubricated in three areas: through either endof the stud (head-end or threaded-end) orthrough the cross-drilled hole in the stud. Thefour smallest size cam followers (CR-1/2, CR-9/16, CR-5/8, CR-11/16) can be re-lubricatedthrough the head-end only due to the diameterconstraints of the stud. The axial lubrication holein the stud is linked to a radial hole in theraceway of the bearing allowing the lubricantto reach the needles. The ends of the stud arecounter-bored and precision-reamed to ac cepta drive-type lubrication grease fitting (notfurnished). Two precision-machined plugs aresupplied with each cam follower and should bepressed into the unused re-lubrication holes inthe end of the studs. The housing that the camfollower is mounted into serves to block thecross-drilled re-lubrication hole in the stud whenthe re-lubrication hole is not being used.(See Fig 1 & 2).

Yoke Rollers can be re-lubricated through theoil holes that are drilled in the inner race of thebearing. The mounting pin that supports thebearing must be drilled so that lubrication holelines up with the oil hole in the bearing.

GreaseFitting

Plug

GreaseFitting

Plug Plug

GreaseFitting

Plug

Cam Followers Stud & Yoke Type

Fig. 1 shows the re-lubricationpath through the threaded-end ofthe stud (white area). The hea d-endis properly closed off using one ofthe two the plugs provided witheac h cam follower. Due to diameterconstraints of the stud, smaller camfollowers cannot be re-lubricatedthough the threaded-end.

Fig. 1 Lub ric a tion Throug h Threa d- End

Fig. 3 Lubric a tion Throug h C e nter-Hole

Fig. 2 shows the re-lubricationpath through the head-end of thestud (white area). The threaded-endis properly closed off using one ofthe two the plugs provided witheac h cam follower.

Note: Smaller cam followers with hex-drivesocket can only be re-lubricated throughthreaded-end. See dimensional charts.

Fig. 3 shows the re-lubricationpath through the cross-drilled holein the stud of the cam follower(white area). A lubrication greasefitting must be installed in thehousing of the equipment. In thiscase, the threaded-end and head-end are properly closed off usingboth of the plugs provided witheac h cam follower.

For grease relubrication of the Cam Follower CR Series and HRSeries,the following drive type fittings are suggested:

Cam Follower Size Lubrication Fitting

C R1/ 2 to C R11 / 16 1/ 8 Alem ite FittingHR1 / 2 to HR5/ 8 #3019

C R3/ 4 to CR23 / 4 3/ 16 Alem ite FittingHR3 / 4 to HR2 3/ 4

C R3 to C R4 1/ 4 A le m ite FittingHR3 to HR4 #1743 or #1743-B

CR5 to CR6 1/ 4 N .P.T. fitting


Fig. 2 Lubric a tion Throug h He a d- End

#1728-B, #1633, #1645-B, #3005, #3006, #3009, #3012-BB


12/115


Mounting Stud-Type Cam FollowersProper cam follower mounting requires a closeprecision fit between the stud and housing bore.We recommend using bore sizes provided in thedimensional tables. An arbor press is the preferredmeans of stud installation with pressure applied tothe central area of the stud, not to the outerflange edges.

In positioning the c am follower, the end washershould be firmly supported by the shoulder of themachine member, which must be square with thecenterline of the stud. The shoulder should be at

least as large as the minimum boss diametergiven in the dimensional tables as denoted bythe E dimension (Fig.4). It is also important thatthe alignment be maintained between thebearing axis and the cam or track surface toprevent edge loading of the bearing outer rac e.The dimensional tables list the recommendedtorque to be applied to the nut. Excessive torque,in particular with small sizes, may damage theinternal elements. Torque value for lubricatedthreads should be reduced by half the valuegiven in the dimensional tables.

Mounting Yoke-Type Cam FollowersThe mounting of yoke rollers should provide for

endwise clamping to prevent axial movementand displacement of the end washer. The endwasher should be firmly supported by a flathousing shoulder, which must be square with thecenterline of the bearing. The shoulder shouldbe at least as large as the minimum clampingdiameter shown in the dimensional tables asdenoted by the E dimension (Fig. 5) to provideadequate washer support.

The recommended shaft diameters listed in thedimensional tables provide for either a slip or pressfit. In applications with extreme loads, the studshould be heat-treated and press-fit into thebearing bore. With moderate loads, a hardenedstud should be used but a slip-fit is sufficient. In

lightly loaded applications, a slip-fit may beused with a non-hardened stud.

E

EccentricSleeve

Fig. 4 M ounting of a Stud TypCam Fol lower

Cam Followers Stud & Yoke Ty


Fig. 5 M ount ing o f a Yoke TypCam Fol lower

Fig. 6 M ounting of a Stud Typ eCa m Fol lowe r withEccentric Sleeve


13/115

Bearing Life

Properly selected bearings that havebeen suitably mounted and lubricatedwill operate for extended periods of timewith minimal wear until the fatigue life ofthe rolling elements is reached. Fatiguelife of a bearing is reached when"spalling" or flaking of the contactsurfaces (rolling element and rac eway)occur from repeated stresses. Once the

fatigue life of the rolling element orraceway is reached, wear and ultimatefailure of the bearing will occur veryrapidly. The purpose is to select theproper type and size of bearing for theintended application in order to optimizeperformance and operating life.

The life of a bearing can be defined interms of hours of operation or number ofrevolutions the bearing will endure beforefailure. We need to keep in mind thatsome variations between individualbearings that look identical do exist. Themost common definition of bearing life asdefined by the ABMA (American BearingManufacturers Association) is referred toas the L10 life . The L10 life of a bearing isthe number of hours that 90% of a groupof seemingly identical bearings willoperate prior to fatigue failure occurring.The L10 life can also be expressed in thenumber of revolutions when the speed isknown. When selecting a bearing themachine designer should select anappropriate L10 life for the particularapplication.

Note: Larger bearings will have a longerexpected life than smaller bearings underidentical conditions. Heavier loads will

dec rease the expected life of a bearing.Therefore, to maximize operating life, thelargest bearing possible should be used.See equations to right.


6

Bearing Life & Load Calculations


The life expec tancy (L10 life ) in hours of a bearing can bcalculated by using the following formula:

L10 = 16,666 BDR1 0 / 3

N P

The Ba sic Dyna m ic Ra ting (BDR) required fora given application can be calculated by usingfollowing formula:

BDR = .054 x P x (L10 x N ) .3

L10 = Life of the bearing in hours of operationBDR = Basic Dynamic Rating of the bearing

P = Radial Load (lbs)

N = Speed (RPM)

( )

Bearing Size and Selection

Once the type of bearing for a specificapplication has been selected, thedesigner must then choose the size ofbearing required for the application.The larger the bearing the larger theload it is capable of handling. TheBa sic Dyna m ic Ra t ing (BDR), or itsequivalent is an indication of howmuch dynamic load a given bearing

size can handle. This rating is a referenvalue only and is based on an L10 lifeof 500 hours at a rotation speed of 331RPM. In actual practice, the bearingshould never be subjected to more the50% of this value. The M a xim um Sta t icC a p a c i t y is the largest static load thatcan be applied to the bearing beforethe rolling elements becomepermanently deformed. For stud typecam followers, the maximum staticcapacity is the largest static load thatcan be applied before the stud willbend or deform.


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L10 Life LF L10 Life LF

(hrs) (hrs)

500 1.000 16,000 2.8

600 1.064 18,000 2.9

700 1.102 20,000 3.0800 1.151 25,000 3.2

900 1.193 30,000 3.4

1000 1.231 35,000 3.5

1200 1.300 40,000 3.7

1400 1.362 45,000 3.8

1600 1.417 50,000 3.9

1800 1.468 60,000 4.2

2000 1.515 70,000 4.4

2500 1.620 80,000 4.5

3000 1.712 90,000 4.7

3500 1.793 100,000 4.9

4000 1.866 120,000 5.14500 1.933 140,000 5.4

5000 1.995 160,000 5.6

6000 2.110 180,000 5.8

7000 2.210 200,000 6.0

8000 2.300 220,000 6.2

9000 2.380 240,000 6.3

10000 2.460 260,000 6.5

12000 2.600 280,000 6.6

14000 2.720 300,000 6.8

Speed Factors Chart Life Factors Chart

Example 1:

Determine the L10 life of a C R- 7/ 8 camfollower operating at a speed of 500 RPMunder a load of 750 lbs:

Find the Ba sic Dyna m ic Ra t ing (BDR)in the specification page for the C R- 7/ 8cam follower:

BDR (Basic Dynamic Rating) =2140 lbs

From the given formula:

L10 = 16,666 BDR1 0 / 3

N P

L10 = 16,666 2 1401 0 / 3

500 750

L10 = 1098 hrs.

Note: This shows the expected operating lifefor the C R- 7 / 8 under the above conditions is1098 hours. If a longer life span is desired

and room for installation permits, a larger

bearing with a higher Basic Dynamic Rating(BDR) could be selected. For example: a

CR-11 / 4 cam follower with a BDR (BasicDynamic Rating) of 4470 lbs will operate for12,794 hours in the identical application.

Example 2:

Determine the required Ba sic Dyna m icRating (BDR) for a bearing that will beoperating at 1000 RPM with an appliedload of 400 lbs. The machine designer hasdetermines that the application requiresan L10 life of 15,000 h rs.

From the given formula:

BDR = .054 x P x (L10 x N ) .3

BDR = .054 x 400 x (15,000 x 1,000).3

BDR = 3071 lbs

Note: A CR-1 1/ 4cam follower with aBasic Dynamic Rating (BDR) of 4470 lbs.would be chosen for this application.

If A CR-1 cam follower with a Basic DynamicRating (BDR) of 3030 lbs were used, theoperating life would be reduced to

14,226 hrs. See Example 1.

( )

( )

Bearing Life Calculations using Speed Factor & Life Factor Charts

An a lternative method for determining the L10 life or the desiredBa sic Dyna m ic Ra t ing (BDR) required for a particular application is by usingthe SPEED Factor and LIFE Factor charts. Use given formula below:

BDR =A p p lied Lo a d x (SF) Sp e ed Fac to r x (LF) Life Fa c tor

Example 3:

Determine the Ba sic Dyna m ic Ra t ing (BDR) for a bearing that will beoperating at 250 RPM with an applied load of 2000 lbs. The requiredL

10

life for the application is 600 hrs.

From the given formula above and using Speed and Life Charts below:

BDR =A p p lied Lo a d x (SF) Sp e ed Fac to r x (LF) Life Fa c tor

BDR = 2000 x 1.83 x 1.064

BDR = 3895 lbs

RPM SF RPM SF

331/3 1.000 1200 2.940

40 1.056 1300 3.000

50 1.120 1400 3.07060 1.193 1500 3.125

70 1.249 1600 3.200

80 1.300 1700 3.250

90 1.347 1800 3.310

100 1.390 1900 3.365

125 1.499 2000 3.420

150 1.570 2100 3.460

175 1.644 2200 3.520

200 1.712 2400 3.610

250 1.830 2600 3.700

300 1.935 2800 3.780

350 2.025 3000 3.860400 2.105 3200 3.930

450 2.185 3400 4.010

500 2.250 3600 4.070

600 2.380 3800 4.150

700 2.490 4000 4.210

800 2.590 4200 4.270

900 2.690 4400 4.330

1000 2.780 4600 4.380

1100 2.850 4800 4.440


Bearing Life & Load Calculatio



15/115

Shock Load

The load ratings for bearings are based on smoothand uniformly applied loads. When the load on thebearing is such that shock or vibration is present thebearing capacity must be increased. Use the loadclassification chart to adjust the actual load to theeffective load that is seen by the bearing. Theactual bearing load should be multiplied by therelevant factor when calculating bearing life orwhen determining the required BDR (BasicDynamic Rating) for the application.

Load Classification Chart

Ex a m p l e :If a bearing is subjected to a 600 lb load under"moderate shock" conditions, a 1200 lb loadshould be assumed for bearing selectionpurposes.

Track Capacity

In normal applications cam followers and yokerollers operate against a trac k, cam or rail on apiece of machinery or equipment. The Trac kC a p a c i t y is the maximum load that a steel trackof a given tensile strength will withstand withoutplastic deformation or brinelling of the trac ksurface when operating with a particular sizebearing. Trac k capacities increase with largerbearings due to the increase in contact surface.The following tables allow you to determine thetrack capacities for steel tracks of various hardnessand tensile strengths when used with different sizecam followers and yoke rollers. When usingcrowned bearings assume 80% of the value fortrack capacities due to a decrease in contactarea between the track and bearing outer race.

To determine the Trac k C ap ac ity for a particulartrack of given hardness or tensile strength andbearing size, multiply the Capac ity Fac tor inTable 2 by the Trac k Capac ity in Table 1.

Example:

Track Hardness = 32 Rockw e ll "C"

Bearing Size = 11 / 2To determine the Trac k C ap ac ity multiplythe C apac ity Fac tor in Table 2 by theTrack Capac ity in Table 1.

Tra c k C a pa c ity= .61 x 3760 lbs . = 2282 lbs

Basic Track CapacityBearing Size @ 180,000 P.S.I.

1/2 515

9/16 570

5/8 710

11/16 850

3/4 1050

7/8 1190

1 1560

11/8 175011/4 2425

13/8 2650

11/2 3475

15/8 3760

13/4 4640

17/8 4960

2 6725

21/4 7560

21/2 9640

23/4 12560

3 13750

31/4 14900

31/2 18800

4 20600

5 36400

6 52000

Table 1

Track Rockwell C CapacityTensile Hardness Factor

120,000 26 .45

140,000 32 .61

160,000 36 .79

180,000 40 1.00

200,000 44 1.24

220,000 47 1.50

240,000 50 1.78

Load Classification FactorUniform and Smooth 1.0

Light Shock 1.5

Moderate Shock 2.0

Heavy Shock 3.0

8

Table 2




16/115

Bearing CR HR YRSize Series Series Series

1/2 .03 .03 9/16 .04 5/8 .05 .05

11/16 .06 3/4 .08 .08 .067/8 .10 .10 .08

1 .17 .20 .15

11/8 .20 .24 .17

11/4 .32 .38 .24

13/8 .38 .44 .30

11/2 .55 .69 .41

15/8 .61 .75 .50

13/4 .88 1.00 .64

17/8 .97 1.38 .80

2 1.41 1.56 1.05

21/4 1.69 1.88 1.32

21/2 2.50 2.75 1.80

23/4 3.00 3.19 2.25

3 4.00 4.56 3.10

31/4 4.50 5.19 3.62

31/2 6.42 7.01 4.95

4 9.46 10.83 7.05

5 19.60 14.34

6 32.75 20.25

Bearing Weights (lbs)

Bearing Size HexWrench Size

1/21/8

9/161/8

5/81/8

11/161/8

3/43/16

7/83/16

1 1/4

11/8 1/411/4

1/413/8

1/411/2

5/1615/8

5/1613/4

5/1617/8

5/162 7/16

21/47/16

21/21/2

23/41/2

3 5/831/4

5/831/2

5/84 3/45 1

6 1

Hexagonal Wrench Sizes

High Temperature Applications:

When using bearings at elevated temperatures the subsequent load ratings will be reduced.Standard bearings manufactured from SAE-52100 Bearing Steel will lose 10% of there ratingwhen operating at 400 F. Sm ith Be a ring specializes in manufacturing bearings from exoticalloys designed for high-strength, corrosion-resistance or elevated temperatures. Thetemperature chart below demonstrates the different specialty alloys that are available

and the effect that temperature has on the load rating.

MATERIALS 200 300 400 500 600 700 800

M-50 Tool Steel 100 100 97 96 96 95 90

M-2 Tool Steel 100 100 100 100 100 100 98

M-10 Tool Steel 100 100 100 100 100 100 97

440-C 100 95 90 86 80 72 60

SAE 52-100 100 97 90 75 50 25 15

Temperature F


Temperature Effect on % Load Rating (approx. percentages, ref. only)



17/115

10


Over Including Maximum Minimum

6 mm 18 mm 0 -0.008 mm

18 mm 30 mm 0 -0.009 mm

30 mm 50 mm 0 -0.010 mm

50 mm 80 mm 0 -0.013 mm

80 mm 120 mm 0 -0.015 mm

Cylindrical Roller Diameter D

TOLERANCESIZE


6 mm 120 mm 0 -0.050 mm

Crowned Roller Diameter D

TOLERANCESIZE


2 mm 6 mm 0 -0.012 mm

6 mm 10 mm 0 -0.015 mm

10 mm 18 mm 0 -0.018 mm

18 mm 30 mm 0 -0.021 mm

Stud Diameter d

TOLERANCESIZE

TOLERANCE CHART for Metric Bearings

MCR-Series, MYR-Series, NUKR-Series, MUTD-Series


2 mm 17 mm 0 -0.008 mm

17 mm 30 mm 0 -0.010 mm

30 mm 50 mm 0 -0.012 mm50 mm 80 mm 0 -0.015 mm

80 mm 120 mm 0 -0.200 mm

Bore Diameter d for Yoke Rollers

TOLERANCESIZE



18/115

Cam Followers & Yoke Rollers

Metric Cam Followers & Yoke Rollers

Cam Followerswith Non-metallic Self-lubricatingEngineered Plastic Bushing

Stainless Steel Cam Followers

Heavy Duty Double RowCam Followers

I N C H & M E T R I C S I Z E S

Y O K E & S T U D T Y P E

Cam

Followers

Cam

Followers


S M I T H B E A R I N G


19/115

CR & CR-X

Regular Stud

Screwdriver Slot

Regular Stud with

Screw-Driver SlotSealed or UnsealedX = Sealed

12

SMITHBearing Number D B A M S T N H P

Roller Roller Stud Stud Eff. Thread Oil Hole Oil Hole Lube Min. Recom. Recom. Basic MaO.D. Width Dia. Length Thread U.N.F. Location Dia. Fitting Boss. Bore Torque Dynamic Sta

+.000 +.000 +.001 Min. Class Size Dia. +.0005 Rating CapUNSEALED SEALED -.001 -.005 -.000 2A -.0000 (lbs-in) (lbs) (lb

C a m F o l l o w e r s ( N e e d l e R o l l e r s )

CR1 /2 A CR1 /2 -AX .5 0 0 .3 4 4 1 /2 8 7 0

CR1 /2 CR1 /2 -X . 500.375

.1905 /8

1 /4 1 0 3 2 *1 /8 1 9 /6 4 .1 9 0 0 2 09 7 0

7

CR9 /1 6 CR9 /1 6 -X . 5 6 2 5

CR5 /8 A CR5 /8 -AX .6 2 5 .4 0 6 5 /8 1 2 1 0

CR5 /8 CR5 /8 -X . 625. 4 3 7 5

. 2 5 03 /4

5 /1 6 1 /4 2 8 *1 /8 2 3 /6 4 .2 5 0 0 5 01 3 2 0

1 2

CR1 1 /1 6 CR3 /4 -X . 6 8 7 5

CR3 /4 CR3 /4 -X . 750.5 0 0 .3 7 5 7 /8 3 /8 3 /8 2 4 1 /4 3 /3 2 3 /1 6 1 /2 .3 7 5 0 1 2 0 2 1 4 0 2 2

CR7 /8 CR7 /8 -X . 875

CR1 CR1 -X 1 . 0 0 0.6 2 5 .4 3 7 5 1 1 /2 7 /1 6 2 0 1 /4 3 /3 2 3 /1 6 5 /8 .4 3 7 5 3 5 0 3 0 3 0 3 1

CR1 1 /8 CR11 /8 -X 1 . 1 2 5

CR1 1 /4 CR11 /4 -X 1 . 2 5 0

.7 5 0 .5 0 0 1 1/4 5 /8 1 /2 2 0 5 /1 6 3 /3 2 3 /1 6 3 /4 .5 0 0 0 5 0 0 4 4 7 0 4 3

CR1 3 /8 CR1 3 /8 -X 1 . 3 7 5

CR1 1 /2 CR11 /2 -X 1 . 5 0 0

.8 7 5 .6 2 5 1 1/2 3 /4 5 /8 1 8 3 /8 3 /3 2 3 /1 6 5 7 /6 4 .6 2 5 0 1 0 0 0 5 5 6 0 5 7CR1 5 /8 CR1

5 /8 -X 1 . 6 2 5

CR1 3 /4 CR13 /4 -X 1 . 7 5 0

1 .0 0 0 .7 5 0 1 3/4 7 /8 3 /4 1 6 7 /1 6 3 /3 2 3 /1 6 13/6 4 .7 5 0 0 2 0 0 0 7 8 7 0 7 9

CR1 7 /8 CR17 /8 -X 1 . 8 7 5

CR2 CR2 -X 2 . 0 0 01 .2 5 0 .8 7 5 2 1 7 /8 1 4 1 /2 5 /3 2 3 /1 6 11 3/6 4 .8 7 5 0 2 2 0 0 1 0 3 7 0 1 0 7

CR2 1 /4 CR21 /4 -X 2 . 2 5 0

CR2 1 /2 CR21 /2 -X 2 . 5 0 0

1 .5 0 0 1 .0 0 0 2 1/4 11/8 11 4 9 /1 6 5 /3 2 3 /1 6 1

5/1 6 1.0 0 0 0 3 0 0 0 1 5 2 8 0 1 6 6CR2 3 /4 CR2

3 /4 -X 2 . 7 5 0

CR3 CR3 -X 3 . 0 0 01 .7 5 0 1 .2 5 0 2 1/2 1

1/4 11/41 2 5 /8 1 /4 1 /4 1

3/4 1 .2 5 0 0 5 0 0 0 2 0 2 0 0 2 5 2CR3 1 /4 CR3

1 /4 -X 3 . 2 5 0

CR3 1 /2 CR31 /2 -X 3 .5 0 0 2 .0 0 0 1 .3 7 5 2

3/4 13/8 1

3/8 -1 2 1 1 /1 6 1 /4 1 /4 2 1 .3 7 5 0 6 0 0 0 2 9 6 6 0 3 1 8

CR4 CR4 -X 4 .0 0 0 2 .2 2 5 1 .5 0 0 3 1/2 11/2 1

1/21 2 3 /4 1 /4 1 /4 21/4 1 .5 0 0 0 7 0 0 0 3 5 9 8 0 4 5 1

CR5-XBAvailable in Hex Hole Configuration only.

CR6-XB

* Relubricate through head end only.

B M

S

AP

T

N

H

D P

1/32

Dimensional Data (inches)

I N C H S I Z E S



20/115

CR-B & CR-XB

Regular Stud

Hex-Drive Socket

Regular Stud

with Hex-Drive SocketSealed or UnsealedX = Sealed

SMITHBearing Number D B A M S T N H PRoller Roller Stud Stud Eff. Thread HEX Oil Hole Oil Hole Lube Min Recom. Recom. Basic MO.D. Width Dia. Length Thread U.N.F. Size Location Dia. Fitting Boss. Bore Torque Dynamic St

+.000 +.000 +.001 Min. Class Size Dia. +.0005 Rating CaUNSEALED SEALED -.001 -.005 -.000 2A -.0000 (lbs-in) (lbs) (

CR1 /2 -B CR1 /2 -XB .5 0 0 .3 7 5 .1 9 0 5 /8 1 /4 1 0 3 2 1 /8 1 9 /6 4 .1 9 0 0 2 0 9 7 0

CR5 /8 -B CR5 /8 -XB .6 2 5 .4 3 7 5 . 2 5 0 3 /4 5 /1 6 1 /4 2 8 1 /8 2 3 /6 4 .2 5 0 0 5 0 1 3 2 0 1

CR3 /4 -B CR3 /4 -XB . 750

.5 0 0 .3 7 5 7 /8 3 /8 3 /8 2 4 3 /1 6 1 /4 3 /3 2 3 /1 6 1 /2 .3 7 5 0 1 2 0 2 1 4 0 2CR7 /8 -B CR7 /8 -XB . 875

CR1 -B CR1 -XB 1 . 0 0 0.6 2 5 .4 3 7 5 1 1 /2 7 /1 6 2 0 1 /4 1 /4 3 /3 2 3 /1 6 5 /8 .4 3 7 5 3 5 0 3 0 3 0 3

CR1 1 /8 -B CR11 /8 -XB 1 . 1 2 5

CR1 1 /4 -B CR11 /4 -XB 1 . 2 5 0

.7 5 0 .5 0 0 1 1/4 5 /8 1 /2 2 0 1 /4 5 /1 6 3 /3 2 3 /1 6 3 /4 .5 0 0 0 5 0 0 4 4 7 0 4

CR1 3 /8 -B CR13 /8 -XB 1 . 3 7 5

CR1 1 /2 -B CR11 /2 -XB 1 . 5 0 0

.8 7 5 .6 2 5 1 1/2 3 /4 5 /8 1 8 5 /1 6 3 /8 3 /3 2 3 /1 6 5 7 /6 4 .6 2 5 0 10 0 0 5 5 6 0 5

CR1 5 /8 -B CR15 /8 -XB 1 . 6 2 5

CR1 3 /4 -B CR13 /4 -XB 1 . 7 5 0

1 .0 0 0 .7 5 0 1 3/4 7 /8 3 /4 1 6 5 /1 6 7 /1 6 3 /3 2 3 /1 6 13/64 .7 5 0 0 2 00 0 7 8 7 0 7

CR1 7 /8 -B CR1 7 /8 -XB 1 . 8 7 5

CR2 -B CR2 -XB 2 . 0 0 01 .2 5 0 .8 7 5 2 1 7 /8 1 4 7 /1 6 1 /2 5 /3 2 3 /1 6 1 1 3/6 4 . 8 7 50 2 2 00 1 0 37 0 1 0

CR2 1 /4 -B CR21 /4 -XB 2 . 2 5 0

CR2 1 /2 -B CR21 /2 -XB 2 . 5 0 0

1 .5 0 0 1 .0 0 0 2 1/4 11/8 1 -1 4 1 /2 9 /1 6 5 /3 2 3 /1 6 1

5/16 1 .0 00 0 3 00 0 1 52 80 1 6

CR2 3 /4 -B CR23 /4 -XB 2 . 7 5 0

CR3 -B CR3 -XB 3 . 0 0 01 .7 5 0 1 .2 5 0 2 1/2 1

1/4 11/41 2 5 /8 5 /8 1 /4 1 /4 1

3/4 1.2 50 0 5 00 0 2 02 00 2 5

CR3 1 /4 -B CR31 /4 -XB 3 . 2 5 0

CR3 1 /2 -B CR31 /2 -XB 3.5 0 0 2 .0 0 0 1 .3 7 5 2

3/4 13/8 1

3/81 2 5 /8 1 1 /1 6 1 /4 1 /4 2 1 .3 7 5 0 6 0 0 0 2 4 6 6 0 3 1

CR4 -B CR4 -XB 4 .0 0 0 2 .2 5 0 1 .5 0 0 3 1/2 11/2 1

1/21 2 3 /4 3 /4 1 /4 1 /4 21/4 1.5 00 0 7 00 0 3 59 80 4 5

CR5-XB 3 .5 0 0 2 .7 5 0 2 .0 0 0 5 1/1 6 29/1 6 2 1 2 1 1 /4 3 2 .0 0 0 0 7 5 0 0 4 9 7 5 0 5 6

CR6-XB 4 .0 0 0 3.2 5 0 2 .5 0 0 6 3 2 1/21 2 1 1 /4 31/2 2.5 00 0 7 50 0 7 14 00 9 4

Relubrica te through threaded end only.

Cannot be relubricated.

B M

AP

T

N

H

D

HEX

1/32

C a m F o l l o w e r s ( N e e d l e R o l l e r sI N C H S I Z E S




21/115

14

SMITHBearingNumber

D B A G E M T PRoller Roller Eccentric Eccentric Eccentricity Stud Thread Lube BasicO.D. Width Bushing Bushing +.005 Length U.N.F. HEX Fitting Dynamic

+ .000 + .000 0.D. Length Class Size RatingSEALED .001 .005 +.001 +.000 2A (lbs)

.010

CR1/2-XBE .5 0 0 .3 7 5 .2 5 0 .3 7 5 .0 1 0 5 /8 1 0 3 2 1 /8 9 7 0

CR5/8-XBE .6 2 5 .4 3 7 .3 7 5 .4 3 7 .0 1 5 3 /4 1 /4 2 8 1 /8 1 3 2 0

CR3/4-XBE . 750.5 0 0 .5 0 0 .5 0 0 .0 3 0 7 /8 3 /8 2 4 3 /1 6 3 /1 6 2 1 4 0

CR7/8-XBE . 875

CR1-XBE 1 . 0 0 0.6 2 5 .6 2 5 .5 0 0 .0 3 0 1 7 /1 6 2 0 1 /4 3 /1 6 3 0 3 0

CR1 1 /8 -XBE 1 . 1 2 5

CR1 1 /4 -XBE 1 . 2 5 0.7 5 0 .6 8 7 .6 2 5 .0 3 0 1 1/4 1 /2 2 0 1 /4 3 /1 6 4 4 7 0

CR1 3 /8 -XBE 1 . 3 7 5

CR1 1 /2 -XBE 1 . 5 0 0.8 7 5 .8 7 5 .7 5 0 .0 3 0 1 1/2 5/8 1 8 5 /1 6 3 /1 6 5 5 6 0

CR1 5 /8 -XBE 1 . 6 2 5

CR1 3 /4 -XBE 1 . 7 5 01 .0 0 0 1 .0 0 0 .8 7 5 .0 3 0 1 3/4 3/4 1 6 5 /1 6 3 /1 6 7 8 7 0

CR1 7 /8 -XBE 1 . 8 7 5

CR2-XBE 2 . 0 0 01 .2 5 0 1 .1 8 7 1 .0 0 0 .0 3 0 2 7 /8 1 4 7 /1 6 3 /1 6 1 0 3 7 0

CR2 1 /4 -XBE 2 . 2 5 0

CR2 1 /2 -XBE 2 . 5 0 01 .5 0 0 1 .3 7 5 1 .1 2 5 .0 3 0 2 1/4 1 1 4 1 /2 3 /1 6 1 5 2 8 0

CR2 3 /4 -XBE 2 . 7 5 0

Relubricate through threaded end only.


Housing thickness should be a minimum o f .010 lon ger than bushing length to provide positive clampin g.

NOTE: Also available in Screwdriver version.

B M

A

T

D

HEX

1/32

E

G

Adjustment for More Precise Positioning of Cam Followers

Hex-drive socket Cam Followers with a press fit eccentric bushing sleeveprovide correct alignment and adjustment without costly prepa ration ofclose tolerance mounting holes and members. They eliminate problems ofclearances, preloading and wear compensation and assure load sharing inmultiple cam follower applications. The Hex-drive socket allows positive torquefor locking and adjustment. A lock nut provides adequate clamping to holdbearing in desired position in most applications. Where more positive positioningor permanent locking is required, drill through the housinginto the bushing and stud for doweling or set-screw.

In-l ine A djustme nt Allows G re a ter Loc a tToleranc e for Moun ting Hole s

C o n t ro l o f C l e a ra n c e a n dAdjustme nt for Wea r

CR-XBE

Eccentric Stud

Hex-Drive Socket

Eccentric Stud

with Hex-Drive SocketSealed

X = Sealed


C a m F o l l o w e r s ( N e e d l e R o l l e r s ) I N C H S I Z E S

P



22/115

CR1/2-XBEC .5 0 0 .3 7 5 .2 5 0 .3 7 5 .0 1 0 5 /8 1 0 3 2 1 /8 9 7 0 7

CR5/8-XBEC .6 2 5 .4 3 7 5 .3 7 5 .4 3 7 .0 1 5 3 /4 1 /4 2 8 1 /8 1 3 2 0 8

CR3/4-XBEC . 750.5 0 0 .5 0 0 .5 0 0 .0 3 0 7 /8 3 /8 2 4 3 /1 6 3 /1 6 2 1 4 0 1 0

CR7/8-XBEC . 875

CR1-XBEC 1 . 0 0 0.6 2 5 .6 2 5 .5 0 0 .0 3 0 1 7 /1 6 2 0 1 /4 3 /1 6 3 0 3 0 1 2

CR1 1 /8 -XBEC 1 . 1 2 5

CR1 1 /4 -XBEC 1 . 2 5 0.7 5 0 .6 8 7 .6 2 5 .0 3 0 1 1/4 1 /2 2 0 1 /4 3 /1 6 4 4 7 0 1 4

CR1 3 /8 -XBEC 1 . 3 7 5

CR1 1 /2 -XBEC 1 . 5 0 0.8 7 5 .8 7 5 .7 5 0 .0 3 0 1 1/

2 5 /8 1 8 5 /1 6 3 /1 6 5 5 6 0 2 0

CR1 5 /8 -XBEC 1 . 6 2 5

CR1 3 /4 -XBEC 1 . 7 5 01 .0 0 0 1 .0 0 0 .8 7 5 .0 3 0 1 3/4 3 /4 1 6 5 /1 6 3 /1 6 7 8 7 0 2 0

CR1 7 /8 -XBEC 1 . 8 7 5

CR2-XBEC 2 . 0 0 01 .2 5 0 1 .1 8 7 1 .0 0 0 .0 3 0 2 7 /8 1 4 7 /1 6 3 /1 6 1 0 3 7 0 2 4

CR2 1 /4 -XBEC 2 . 2 5 0

CR2 1 /2 -XBEC 2 . 5 0 01 .5 0 0 1 .3 7 5 1 .1 2 5 .0 3 0 2 1/4 1 1 4 1 /2 3 /1 6 1 5 2 8 0 3 0

CR2 3 /4 -XBEC 2 . 7 5 0



Housing thickness should be a minim um of .010 longer than bushing length to provide positive clamping .

NOTE: Also available in Screwdriver version.

SMITHBearingNumber

D B A G E M T P RRoller Roller Eccentric Eccentric Eccentricity Stud Thread Lube Basic CrowO.D. Width Bushing Bushing +.005 Length U.N.F. HEX Fitting Dynamic Radiu

+ .000 + .000 0.D. Length Class Size Size RatingSEALED .001 .005 +.001 +.000 2A (lbs) (Inche

.010

Adjustment for More Precise Positioning of Cam Followers

Hex-drive Socket Cam Followers with a press fit ecc entric bushing sleeveprovide correct alignment and adjustment without costly prepa ration ofclose tolerance mounting holes and members. They eliminate problems ofclearances, preloading and wear compensation and assure load sharing inmultiple cam follower applications. The Hex-drive socket allows positivetorque for locking and adjustment. A lock nut provides adequate clampingto hold bearing in desired position in most applications. Where more positivepositioning or permanent locking is required, drill through the housinginto the bushing and stud for doweling or set-screw.

B M

G

T

DHEX

1/32

A

E

R

P

CR-XBEC

Crowned Eccentric Stu

Hex-Drive Socket

Eccentric Stud with

Crowned Outer RaceHex-Drive SocketSealedX = Sealed

C a m F o l l o w e r s ( N e e d l e R o l l e rI N C H S I Z E S


In-l ine A djustme nt Allows G re a ter Loc a tToleranc e for Moun ting Hole s

C o n t ro l o f C l e a ra n c e a n dAdjustme nt for Wea r



23/115

16

SMITHBearing Number D B A M S T N H PRoller Roller Stud Stud Eff. Thread Oil Hole Oil Hole Lube Min Recom. Recom. Basic MaO.D. Width Dia. Length Thread U.N.F. Location Dia. Fitting Boss. Bore Torque Dynamic Sta

+.000 +.000 +.001 Min. Class Size Dia. +.0005 Rating CapaUNSEALED SEALED -.001 -.005 -.000 2A -.0000 (lbs-in) (lbs) (lb

HR1 /2 HR1 /2 -X .5 0 0 .3 7 5 .2 5 0 5 /8 1 /4 1 /4 2 8 - *1 /8 1 9 /6 4 .2 5 0 0 5 0 9 7 0 1 5

HR5 /8 HR5 /8 -X .6 2 5 .4 3 7 .3 1 2 5 3 /4 5 /1 6 5 /1 6 2 4 *1 /8 2 3 /6 4 .3 1 2 5 7 5 1 2 1 0 2 5

HR3 /4 HR3 /4 -X . 750.5 0 0 .4 3 7 5 7 /8 3 /8 7 /1 6 2 0 1 /4 3 /3 2 3 /1 6 1 /2 .4 3 7 5 3 0 0 2 1 4 0 4 1

HR7 /8 HR7 /8 -X . 875

HR1 HR1 -X 1 . 0 0 0.6 2 5 .6 2 5 1 1 /2 5 /8 1 8 1 /4 3 /3 2 3 /1 6 3 /4 .6 2 5 0 5 0 0 2 8 5 0 6 2

HR1 1 /8 HR11 /8 -X 1 . 1 2 5

HR1 1 /4 HR11 /4 -X 1 . 2 5 0

.7 5 0 .7 5 0 1 1/4 5 /8 3 /4 1 6 5 /1 6 3 /3 2 3 /1 6 7 /8 .7 5 0 0 1 0 0 0 4 0 6 0 8 6

HR1 3 /8 HR13 /8 -X 1 . 3 7 5

HR1 1 /2 HR11 /2 -X 1 . 5 0 0

.8 7 5 .8 7 5 1 1/2 3 /4 7 /8 1 4 3 /8 3 /3 2 3 /1 6 1 5 /1 6 .8 7 5 0 2 0 0 0 5 3 3 0 1 1 3

HR1 5 /8 HR15 /8 -X 1 . 6 2 5

HR1 3 /4 HR13 /4 -X 1 . 7 5 0

1 .0 0 0 1 .0 0 0 1 3/4 7/8 1 1 4 7 /1 6 3 /3 2 3 /1 6 13/3 2 1 .0 0 0 0 2 5 0 0 7 6 0 0 1 5 8

HR1 7 /8 HR17 /8 -X 1 . 8 7 5

HR2 HR2 -X 2 . 0 0 01 .2 5 0 1.1 2 5 2 1 1 1/81 2 1 /2 5 /3 2 3 /1 6 1

7/3 2 1 .1 25 0 3 00 0 1 0 05 0 2 20

HR2 1 /4 HR21 /4 -X 2 . 2 5 0

HR2 1 /2 HR21 /2 -X 2 . 5 0 0

1 .5 0 0 1 .2 5 0 2 1/4 11/8 1

1/41 2 9 /1 6 5 /3 2 3 /1 6 15/1 6 1 .2 50 0 4 00 0 1 5 28 0 3 30

HR2 3 /4 HR23 /4 -X 2 . 7 5 0

HR3 HR3 -X 3 . 0 0 01 .7 5 0 1 .5 0 0 2 1/2 1

1/4 11/21 2 5 /8 5 /3 2 1 /4 1

3/4 1.5 00 0 5 00 0 2 0 20 0 4 99

HR3 1 /4 HR31 /4 -X 3 . 2 5 0

HR3 1 /2 HR3 1 /2 -X 3 .5 0 0 2 .0 0 0 1 .7 5 0 2 3/4 1 3/8 1 3/41 2 1 1 /1 6 5 /3 2 1 /4 1 1 5/1 6 1 .7 50 0 6 00 0 2 9 66 0 6 33

HR4 HR4 -X 4 .0 0 0 2 .2 5 0 2 .0 0 0 3 1/2 11/2 21 2 3 /4 5 /3 2 1 /4 2

1/4 2.0 00 0 8 00 0 3 5 98 0 9 00


B M

S

AP

T

N

H

D P

1/32

HR & HR-X

Heavy Stud

Screwdriver Slot

Heavy Stud with

Screw-Driver SlotSealed or UnsealedX = Sealed





24/115

D B A M S T N H PRoller Roller Stud Stud Eff. Thread HEX Oil Hole Oil Hole Lube Min Recom. Recom. Basic MO.D. Width Dia. Length Thread U.N.F. Size Location Dia. Fitting Boss. Bore Torque Dynamic Sta

+.000 +.000 +.001 Min. Class Size Dia. +.0005 Rating CapUNSEALED SEALED -.001 -.005 -.000 2A -.0000 (lbs-in) (lbs) (lb

SMITHBearing Number

HR1/2-XB .5 0 0 .3 7 5 .2 5 0 5 /8 1 /4 1 /4 2 8 1 /8 1 9 /6 4 .2 5 0 0 5 0 9 7 0 1

HR5/8-XB .6 2 5 .4 3 7 .3 1 2 5 3 /4 5 /1 6 5/1 6 -2 4 1 /8 2 3 /6 4 .3 1 2 5 7 5 1 2 1 0 2

HR3/4-XB . 750.5 0 0 .4 3 7 5 7 /8 3 /8 7 /1 6 2 0 3 /1 6 1 /4 3 /3 2 3 /1 6 1 /2 .4 3 7 5 3 0 0 2 1 4 0 4

HR7/8-XB . 875

HR1-XB 1 . 0 0 0.6 2 5 .6 2 5 1 1 /2 5 /8 1 8 1 /4 1 /4 3 /3 2 3 /1 6 3 /4 .6 2 5 0 5 0 0 2 8 5 0 6

HR1 1 /8 -XB 1 . 1 2 5

HR1 1 /4 -XB 1 . 2 5 0.7 5 0 .7 5 0 1 1/4 5 /8 3 /4 1 6 1 /4 5 /1 6 3 /3 2 3 /1 6 7 /8 .7 5 0 0 1 0 0 0 4 0 6 0 8

HR1 3 /8 -XB 1 . 3 7 5

HR1 1 /2 -XB 1 . 5 0 0.8 7 5 .8 7 5 1 1/2 3 /4 7 /8 1 4 5 /1 6 3 /8 3 /3 2 3 /1 6 1 5 /1 6 .8 7 5 0 2 0 0 0 5 3 3 0 1 1

HR1 5 /8

-XB 1 . 6 2 5

HR1 3 /4 -XB 1 . 7 5 01 .0 0 0 1 .0 0 0 1 3/4 7 /8 1 1 4 5 /1 6 7 /1 6 3 /3 2 3 /1 6 1

3/3 2 1 .0 0 0 0 2 5 0 0 7 6 0 0 1 5

HR1 7 /8 -XB 1 . 8 7 5

HR2-XB 2 . 0 0 01 .2 5 0 1 .1 2 5 2 1 1 1/81 2 7 /1 6 1 /2 5 /3 2 3 /1 6 1

7/3 2 1 .1 2 50 3 0 00 1 0 05 0 2 2

HR2 1 /4 -XB 2 . 2 5 0

HR2 1 /2 -XB 2 . 5 0 01 .5 0 0 1 .2 5 0 2 1/4 1

1/8 11/41 2 1 /2 9 /1 6 5 /3 2 3 /1 6 1

5/1 6 1 .2 5 00 4 0 00 1 5 28 0 3 3

HR2 3 /4 -XB 2 . 7 5 0

HR3-XB 3 . 0 0 01 .7 5 0 1 .5 0 0 2 1/2 1

1/4 11/21 2 5 /8 5 /8 5 /3 2 1 /4 1

3/4 1 .5 0 00 5 0 00 2 0 20 0 4 9

HR3 1 /4 -XB 3 . 2 5 0

HR3 1 /2 -XB 3.5 0 0 2 .0 0 0 1 .7 5 0 23/4 1

3/8 13/41 2 5 /8 1 1 /1 6 5 /3 2 1 /4 1

1 5/1 6 1 .7 5 00 6 0 00 2 9 66 0 6 3

HR4-XB 4 .0 0 0 2 .2 5 0 2 .0 0 0 3 1/2 11/2 21 2 3 /4 3 /4 5 /3 2 1 /4 2

1/4 2 .0 0 00 8 0 00 3 5 98 0 9 0



HR1/2-B

HR5/8-B

HR3/4-B

HR7/8-B

HR1-B

HR1 1 /8 -B

HR1 1 /4 -B

HR1 3 /8 -B

HR1 1 /2 -B

HR1 5 /8

-B

HR1 3 /4 -B

HR1 7 /8 -B

HR2-B

HR2 1 /4 -B

HR2 1 /2 -B

HR2 3 /4 -B

HR3-B

HR3 1 /4 -B

HR3 1 /2 -B

HR4-B

B M

AP

T

N

H

D

HEX

1/32

S

HR-B & HR-XB

Heavy Stud

Hex-Drive Socket

Heavy Stud

with Hex-Drive SocketSealed or UnsealedX = Sealed





25/115

18

SMITHBearing Number D A B W E Recommended Shaft Dia.

Roller Bore Roller Overall Min Basic MaO.D. Nominal Tolerance Width Width Clamping Dynamic Sta

+.000 +.000 +.005 Dia. Rating CapaUNSEALED SEALED -.001 -.005 -.010 (lbs) (lb

Slip Fit Press Fit

Max. Min. Max. Min.

1 . 1 2 5 0

1 . 2 5 0 0

1 . 7 5 0 0

2 . 2 5 0 0

. 2 5 0 0

. 3 1 2 5

. 3 7 5 0

. 4 3 7 5

. 5 0 0 0

. 6 2 5 0

. 7 5 0 0

1 . 0 0 0 0

YR3 /4 YR3 /4 -X . 750.5 0 0 .5 6 2 5 1 /2 .2 4 9 7 .2 4 9 3 .2 5 0 5 .2 5 0 1 2 1 4 0 4 1 7

YR7 /8 YR7 /8 -X . 875

YR1 YR1 -X 1 . 0 0 0.6 2 5 .6 8 7 5 5 /8 .3 1 2 2 .3 1 1 8 .3 1 3 0 .3 1 2 6 3 0 3 0 6 2 0

YR1 1 /8 YR11 /8 -X 1 . 1 2 5

YR1 1 /4 YR11 /4 -X 1 . 2 5 0

.7 5 0 .8 1 2 5 3 /4 .3 7 4 7 .3 7 4 3 .3 7 5 5 .3 7 5 1 4 4 7 0 8 6 0

YR1 3 /8 YR3/8 -X 1 . 3 7 5

YR1 1 /2 YR11 /2 -X 1 . 5 0 0

.8 7 5 .9 3 7 5 5 7 /6 4 .4 3 7 2 .4 3 6 8 .4 3 8 0 .4 3 7 6 5 5 6 0 1 1 3

YR1 5 /8 YR15 /8 -X 1 . 6 2 5

YR1 3 /4 YR13 /4 -X 1 . 7 5 0

1 .0 0 0 1 .0 6 2 5 1 3/6 4 .4 9 9 7 .4 9 9 3 .5 0 0 7 .5 0 0 3 7 8 7 0 1 5 8

YR1 7 /8 YR17 /8 -X 1 . 8 7 5

YR2 YR2 -X 2 . 0 0 01 .2 5 0 1 .3 1 2 5 1 1 3/6 4 .6 2 4 7 .6 2 4 3 .6 2 5 7 .6 2 5 3 1 0 3 7 0 2 2 0

YR2 1 /4 YR21 /4 -X 2 . 2 5 0

YR2 1 /2 YR21 /2 -X 2 . 5 0 0

1 .5 0 0 1 .5 6 2 5 1 5/1 6 .7 4 9 7 .7 4 9 3 .7 5 0 7 .7 5 0 3 1 5 2 8 0 3 3 0

YR2 3 /4 YR23 /4 -X 2 . 7 5 0

YR3 YR3 -X 3 . 0 0 01 .7 5 0 1 .8 1 2 5 1 3/4 .9 9 9 6 .9 9 9 2 1 .0 0 0 8 1 .0 0 0 3 2 0 2 0 0 4 9 9

YR3 1 /4 YR31 /4 -X 3 . 2 5 0

YR3 1 /2 YR31 /2 -X 3 .5 0 0 2 .0 0 0 2 .0 6 2 5 2 1 .1 2 4 6 1 .1 2 4 1 1 .1 2 5 8 1 .1 2 5 3 2 4 6 6 0 6 3 3

YR4 YR4 -X 4 .0 0 0 2 .2 5 0 2 .3 1 2 5 2 1/4 1 .2 49 6 1 .2 49 1 1 .2 5 08 1 .2 50 3 3 5 98 0 9 00

YR5-X 5 .0 0 0 2 .7 5 0 2 .8 7 5 0 3 1 .7 4 9 6 1 .7 4 9 1 1 .7 5 0 8 1 .7 5 0 3 4 9 7 5 0 1 3 6 0

YR6-X 6 .0 0 0 3 .2 5 0 3 .3 7 5 0 3 1/2 2 .2 4 96 2 .2 4 91 2 .2 5 08 2 .2 5 03 7 1 40 0 1 6 20

+ . 0 0 0 2

. 0 0 0 4

+ . 0 0 0 1

. 0 0 0 5

W

A ED

BYR &YR-X

Yoke Type

for Shaft MountingSealed or UnsealedX = Sealed





26/115

Edge Loading of full complement needle bearings causesskewing and end thrusting which contribute to premature

bearing failure. In situations where it is impractical or too costlyto provide for perfect alignment, crowned bearing O.D.s

provide compensation for misalignment between the camfollower and the surface of a slanted track or cam. The radiusalso eliminates skidding and thrusting typically found when the

bearing is on contact with a flat or circular cam. Bearing lifewill be increased in those problem applications where

standard flat bearing surfac es have proven troublesome.

CROW NED BEARINGS

Ad d Suffix C

are recommended wherethe track or cam may impartexcessive thrust loading onthe bearing due tomisalignment.

Crowned

CamFollowers

Crowned

CamFollowersI N C H S I Z E S



S M I T H B E A R I N G C a m F o l l o w e r s ( N e e d l e R o l l e r s


27/115

20

SMITHBearing Number D B A M S T N H P Roller Roller Stud Stud Eff. Thread Oil Hole Oil Hole Lube Min. Recom. Recom. Basic Max CrO.D. Width Dia. Length Thread U.N.F. Location Dia. Fitting Boss. Bore Torque Dynamic Static Ra

+.000 +.000 +.001 Min. Class Size Dia. +.0005 Rating Capacity (IncUNSEALED SEALED -.001 -.005 -.000 2A -.0000 (lbs-in) (lbs) (lbs)

CR1 /2 A- C CR1 /2 A- XC .5 0 0 .3 4 4 0 1 /2 8 7 0

CR1 /2 -C CR1 /2 -XC . 500. 3 7 5 0

.1905 /8

1 /4 1 0 3 2 *1 /8 1 9 /6 4 .1 9 0 0 2 09 7 0

7 2 0

CR9 /1 6-C CR9 /1 6-XC . 5 6 2 5

CR5 /8 A- C CR5 /8 A- XC .6 2 5 .4 0 6 0 5 /8 1 2 1 0

CR5 /8 -C CR5 /8 -XC . 625. 4 3 7 5

. 2 5 03 /4

5 /1 6 1 /4 2 8 *1 /8 2 3 /6 4 .2 5 0 0 5 01 3 2 0

1 2 5 0

C R 11 /1 6 -C C R 11 /1 6 -XC . 6 8 7 5

CR3 /4 -C CR3 /4 -XC . 750.5 0 0 0 .3 7 5 7 /8 3 /8 3 /8 2 4 1 /4 3 /3 2 3 /1 6 1 /2 .3 7 5 0 1 2 0 2 1 4 0 2 2 0 0

CR7 /8 -C CR7 /8 -XC . 875

CR1 -C CR1 -XC 1 . 0 0 0.6 2 5 0 .4 3 7 5 1 1 /2 7 /1 6 2 0 1 /4 3 /3 2 3 /1 6 5 /8 .4 3 7 5 3 5 0 3 0 3 0 3 1 0 0

CR1 1 /8 -C CR11 /8 -XC 1 . 1 2 5

CR1 1 /4 -C CR11 /4 -XC 1 . 2 5 0

.7 5 0 0 .5 0 0 1 -1 /4 5 /8 1 /2 2 0 5 /1 6 3 /3 2 3 /1 6 3 /4 .5 0 0 0 5 0 0 4 4 7 0 4 3 0 0 CR1 3 /8 -C CR1

3 /8 -XC 1 . 3 7 5

CR1 1 /2 -C CR11 /2 -XC 1 . 5 0 0

.8 7 5 0 .6 2 5 1 -1 /2 3 /4 5 /8 1 8 3 /8 3 /3 2 3 /1 6 5 7 /6 4 .6 2 5 0 1 0 0 0 5 5 6 0 5 7 3 0

CR1 5 /8 -C CR15 /8 -XC 1 . 6 2 5

CR1 3 /4 -C CR13 /4 XC 1 . 7 5 0

1 .0 0 0 0 .7 5 0 1 3/4 7 /8 3 /4 1 6 7 /1 6 3 /3 2 3 /1 6 13/64 .7 5 0 0 2 0 0 0 7 8 7 0 7 9 5 0

CR1 7 /8 -C CR17 /8 -XC 1 . 8 7 5

CR2 -C CR2 -XC 2 . 0 0 01 .2 5 0 0 .8 7 5 2 1 7 /8 1 4 1 /2 5 /3 2 3 /1 6 1 1 3/6 4 .8 7 5 0 2 2 0 0 1 0 3 7 0 1 0 7 0 0

CR2 1 /4 -C CR21 /4 -XC 2 . 2 5 0

CR2 1 /2 -C CR21 /2 -XC 2 . 5 0 0

1 .5 0 00 1 .0 0 0 2 1/4 11/8 11 4 9 /1 6 5 /3 2 3 /1 6 1

5/16 1 .0 0 0 0 3 0 0 0 1 5 2 8 0 1 6 6 5 0

CR2 3 /4 -C CR2 3 /4 -XC 2 . 7 5 0

CR3 -C CR3 -XC 3 . 0 0 01 .7 50 0 1 .2 50 2 1/2 1

1/4 11/41 2 5 /8 1 /4 1 /4 1

3/4 1 .2 5 0 0 5 0 0 0 2 0 2 0 0 2 5 2 0 0

CR3 1 /4 -C CR31 /4 -XC 3 . 2 5 0

CR3 1 /2 -C CR31 /2 -XC 3 .5 00 2 .0 0 00 1 .3 7 5 2

3/4 13/8 1

3/8 -1 2 1 1 /1 6 1 /4 1 /4 2 1 .3 7 5 0 6 0 0 0 2 9 6 6 0 31 8 0 0

CR4 -C CR4 -XC 4 .0 00 2 .2 5 00 1 .5 0 0 3 1/2 11/2 1

1/21 2 3 /4 1 /4 1 /4 21/4 1 .5 0 0 0 7 0 0 0 3 5 9 8 0 4 5 1 0 0

CR5-XBCAvailable only in Hex Hole Configuration.

CR6-XBC


B M

S

AP

TN

H

D

1/32

R

P

CR-C & CR-XC

Crowned Regular Stud

Screwdriver Slot

Regular Stud

with Crowned Outer RaceScrew-Driver SlotSealed or UnsealedX = Sealed





28/115

SMITHBearing Number D B A M S T N H P Roller Roller Stud Stud Eff. Thread HEX Oil Hole Oil Hole Lube Min Recom. Recom. Basic Max CrO.D. Width Dia. Length Thread U.N.F. Size Location Dia. Fitting Boss. Bore Torque Dynamic Static Ra

+.000 +.000 +.001 Min. Class Size Dia. +.0005 Rating Capacity(IncUNSEALED SEALED -.001 -.005 -.000 2A -.0000 (lbs-in) (lbs) (lbs)

CR1 /2 -BC C R 1/ 2- XBC .5 0 0 .3 7 5 0 .1 9 0 5 /8 1 /4 1 0 3 2 1 /8 1 9 /6 4 .1 9 0 0 2 0 9 7 0 7 2 0

CR5 /8 -BC C R 5/ 8- XBC .5 0 0 .4 3 7 5 .2 5 0 3 /4 5 /1 6 1 /4 2 8 1 /8 2 3 /6 4 .2 5 0 0 5 0 1 3 2 0 1 2 5 0

CR3 /4 -BC C R 3/ 4- XBC . 750.5 0 0 0 .3 7 5 0 7 /8 3 /8 3 /8 2 4 3 /1 6 1 /4 3 /3 2 3 /1 6 1 /2 .3 7 5 0 1 2 0 2 1 4 0 3 2 0 0

CR7 /8 -BC C R 7/ 8- XBC . 875

CR1 -BC CR1 -XBC 1 . 0 0 0.6 2 5 0 .4 3 7 5 1 1 /2 7 /1 6 2 0 1 /4 1 /4 3 /3 2 3 /1 6 5 /8 .4 3 7 5 3 5 0 3 0 3 0 3 1 0 0

CR1 1 /8 -BC CR11 /8 -XBC 1 . 1 2 5

CR1 1 /4 -BC CR11 /4 -XBC 1 . 2 5 0

.7 50 0 .5 00 0 1 1/4 5 /8 1 /2 2 0 1 /4 5 /1 6 3 /3 2 3 /1 6 3 /4 .5 0 0 0 5 0 0 4 4 7 0 4 3 0 0

CR1 3 /8 -BC CR13 /8 -XBC 1 . 3 7 5

CR1 1 /2 -BC CR11 /2 -XBC 1 . 5 0 0

.8 75 0 .6 25 0 1 1/2 3 /4 5 /8 1 8 5 /1 6 3 /8 3 /3 2 3 /1 6 5 7 /6 4 .6 2 5 0 1 0 0 0 5 5 6 0 5 7 3 0

CR1 5 /8 -BC CR15 /8 -XBC 1 . 6 2 5

CR1 3 /4 -BC CR13 /4 -XBC 1 . 7 5 0

1 .0 00 0 .7 50 0 1 3/4 7 /8 3 /4 1 6 5 /1 6 7 /1 6 3 /3 2 3 /1 6 13/6 4 .7 5 0 0 2 0 0 0 7 8 7 0 7 9 5 0 CR1 7 /8 -BC CR1

7 /8 -XBC 1 . 8 7 5

CR2 -BC CR2 -XBC 2 . 0 0 01 .2 5 0 0 .8 7 5 0 2 1 7 /8 1 4 7 /1 6 1 /2 5 /3 2 3 /1 6 1 13/6 4 .8 7 5 0 2 2 0 0 1 0 3 7 0 1 0 7 0 0

CR2 1 /4 -BC CR21 /4 -XBC 2 . 2 5 0

CR2 1 /2 -BC CR21 /2 -XBC 2 . 5 0 0

1 .5 0 00 1 .0 0 00 2 1/4 11/8 1 -1 4 1 /2 9 /1 6 5 /3 2 3 /1 6 1

5/1 6 1 .0 0 0 0 3 0 00 1 52 80 1 6 65 0

CR2 3 /4 -BC CR23 /4 -XBC 2 . 7 5 0

CR3 -BC CR3 -XBC 3 . 0 0 01 .7 5 00 1 .2 5 00 2 1/2 1

1/4 11/41 2 5 /8 5 /8 1 /4 1 /4 1

3/4 1 .2 5 0 0 5 0 00 2 02 00 2 5 26 0

CR3 1 /4 -BC CR31 /4 -XBC 3 . 2 5 0

CR3 1 /2 -BC CR31 /2 -XBC 3 . 50 0 2 .0 0 00 1 .3 7 50 2

3/4 13/8 1

3/81 2 5 /8 1 1 /1 6 1 /4 1 /4 2 1 .3 7 5 0 6 0 0 0 2 9 6 6 0 3 1 8 0 0

CR4 -BC CR4 -XBC 4 .0 0 0 2 .2 5 00 1 .5 0 00 3 1/2 1 1/2 1 1/21 2 3 /4 3 /4 1 /4 1 /4 2 1/4 1 .5 0 0 0 7 0 00 3 59 80 4 5 10 0

CR5 -BC CR5 -XBC 5 .0 0 0 2 .7 5 00 2 .0 0 00 5 1/16 29/1 6 2 1 2 1

1 /4 3 2 .0 0 0 0 7 5 0 0 4 9 7 5 0 5 6 9 0 0

CR6 -BC CR6 -XBC 6 .0 0 0 3 .2 5 0 0 2 .2 5 0 0 6 3 2 1/21 2 1 1 /4

3 1/2 2 .5 0 0 0 7 5 00 7 14 00 9 4 00 0



NPT

NPT

B M

A

T

DHEX

1/32

H

S

N

R

P

CR-BC & CR-XBC

Crowned Regular Stud

Hex-Drive Socket

Regular Stud

with Crowned Outer RaceHex-Drive SocketSealed or UnsealedX = Sealed




For Eccentric Sleeve Add Suffix EExample: CR-XBEC. See Page 15.


29/115

22

SMITHBearing Number D B A M S T N H P R

Roller Roller Stud Stud Eff. Thread Oil Hole Oil Hole Lube Min. Recom. Recom. Basic Max RadO.D. Width Dia. Length Thread U.N.F. Location Dia. Fitting Boss. Bore Torque Dynamic Static Cro

+.000 +.000 +.001 Min. Class Size Dia. +.0005 Rating Capacity (InchUNSEALED SEALED-.001 -.005 -.000 2A -.0000 (lbs-in) (lbs) (lbs)

HR1 /2 -C HR1 /2 -XC . 5 0 0 .3 7 5 .2 5 0 5 /8 1 /4 1 /4 2 8 - *1 /8 1 9 /6 4 .2 5 0 0 5 0 9 7 0 1 5 9 0 7

HR5 /8 -C HR5 /8 -XC .6 2 5 .4 3 7 .3 1 2 5 3 /4 5 /1 6 5 /1 6 2 4 *1 /8 2 3 /6 4 .3 1 2 5 7 5 1 2 1 0 2 5 0 0 8

HR3 /4 -C HR3 /4 -XC . 750.5 0 0 .4 3 7 5 7 /8 3 /8 7 /1 6 2 0 1 /4 3 /3 2 3 /1 6 1 /2 .4 3 7 5 3 0 0 2 1 4 0 4 1 5 0

1

HR7 /8 -C HR7 /8 -XC . 875

HR1 -C HR1 -XC 1 . 0 0 0.6 2 5 .6 2 5 1 1 /2 5 /8 1 8 1 /4 3 /3 2 3 /1 6 3 /4 .6 2 5 0 5 0 0 2 8 5 0 6 2 0 0 1

HR1 1 /8 -C HR11 /8 -XC 1 . 1 2 5

HR1 1 /4 -C HR11 /4 -XC 1 . 2 5 0

.7 5 0 .7 5 0 1 1/4 5 /8 3 /4 1 6 5 /1 6 3 /3 2 3 /1 6 7 /8 .7 5 0 0 1 00 0 4 0 6 0 8 6 9 0 1

HR1 3 /8 -C HR13 /8 -XC 1 . 3 7 5

HR1 1 /2 -C HR11 /2 -XC 1 . 5 0 0

.8 7 5 .8 7 5 1 1/2 3 /4 7 /8 1 4 3 /8 3 /3 2 3 /1 6 1 5 /1 6 .8 7 5 0 2 0 0 0 5 3 3 0 1 1 3 0 0 2

HR1 5 /8

-C HR1 5 /8

-XC 1 . 6 2 5

HR1 3 /4 -C HR13 /4 -XC 1 . 7 5 0

1 .0 0 0 1 .0 0 0 1 3/4 7 /8 1 1 4 7 /1 6 3 /3 2 3 /1 6 13/3 2 1 .0 0 0 2 5 0 0 7 6 0 0 1 5 8 7 0 2

HR1 7 /8 -C HR17 /8 -XC 1 . 8 7 5

HR2 -C HR2 -XC 2 . 0 0 01 .2 5 0 1 .1 2 5 2 1 1 1/81 2 1 /2 5 /3 2 3 /1 6 1

7/3 2 1.1 2 5 0 3 0 0 0 1 0 0 5 0 2 2 0 0 0 2

HR2 1 /4 -C HR21 /4 -XC 2 . 2 5 0

HR2 1 /2 -C HR21 /2 -XC 2 . 5 0 0

1 .5 0 0 1 .2 5 0 2 1/4 11/8 1

1/41 2 9 /1 6 5 /3 2 3 /1 6 15/1 6 1.2 5 0 0 4 0 0 0 1 5 2 8 0 3 3 0 0 0 3

HR2 3 /4 -C HR23 /4 -XC 2 . 7 5 0

HR3 -C HR3 -XC 3 . 0 0 01 .7 5 0 1 .5 0 0 2 1/2 1

1/4 11/21 2 5 /8 5 /3 2 1 /4 1

3/4 1 .5 0 0 0 5 0 0 0 2 0 2 0 0 4 9 9 0 0 3

HR3 1 /4 -C HR31 /4 -XC 3 . 2 5 0

HR3 1 /2 -C HR3 1 /2 -XC 3 .5 0 0 2 .0 0 0 1 .7 5 0 2 3/4 1 3/8 1 3/41 2 1 1 /1 6 5 /3 2 1 /4 1 1 5/1 6 1 .7 5 0 0 6 0 0 0 2 9 6 6 0 6 3 3 0 0 3

HR4 -C HR4 -XC 4 .0 0 0 2 .2 5 0 2 .0 0 0 3 1/2 11/2 21 2 3 /4 5 /3 2 1 /4 2

1/4 2 .0 0 0 0 8 0 0 0 3 5 9 8 0 9 0 0 0 0 3

* Cannot be relubricated through threaded end.

B M

S

AP

T

N

H

D P

1/32

R

HR-C & HR-XC

Crowned Heavy Stud

Screwdriver Slot

Heavy Stud

with Crowned Outer RaceScrew-Driver SlotSealed or UnsealedX = Sealed





30/115

D B A M S T N H P Roller Roller Stud Stud Eff. Thread HEX Oil Hole Oil Hole Lube Min Recom. Recom. Basic Max CrO.D. Width Dia. Length Thread U.N.F. Size Location Dia. Fitting Boss. Bore Torque Dynamic Static Ra

+.000 +.000 +.001 Min. Class Size Dia. +.0005 Rating Capacity (IncUNSEALED SEALED -.001 -.005 -.000 2A -.0000 (lbs-in) (lbs) (lbs)

SMITHBearing Number

HR1/2-BC

HR5/8-BC

HR3/4-BC

HR7/8-BC

HR1-BC

HR1 1 /8 -BC

HR1 1 /4 -BC

HR1 3 /8 -BC

HR1 1 /2 -BC

HR1 5 /8 -BC

HR1 3 /4 -BC

HR1 7 /8 -BC

HR2-BC

HR2 1 /4 -BC

HR2 1 /2 -BC

HR2 3 /4 -BC

HR3-BC

HR3 1 /4 -BC

HR3 1 /2 -BC

HR4-BC

HR1/2-XBC .5 0 0 .3 7 5 .2 5 0 0 5 /8 1 /4 1 /4 2 8 1 /8 1 9 /6 4 .2 5 0 0 5 0 9 7 0 1 5 9 0

HR5/8-XBC .6 2 5 .4 3 7 .3 1 2 5 3 /4 5 /1 6 5 /1 6 -2 4 1 /8 2 3 /6 4 .3 1 2 5 7 5 1 2 1 0 2 5 0 0

HR3/4-XBC . 750.5 0 0 .4 3 7 5 7 /8 3 /8 7/1 6 2 0 3 /1 6 1 /4 3 /3 2 3 /1 6 1 /2 .4 3 7 5 3 0 0 2 1 4 0 4 1 5 0

HR7/8-XBC . 875

HR1-XBC 1 . 0 0 0.6 2 5 .6 2 5 0 1 1 /2 5 /8 1 8 1 /4 1 /4 3 /3 2 3 /1 6 3 /4 .6 2 5 0 5 0 0 2 8 5 0 6 2 0 0

HR1 1 /8 -XBC 1 . 1 2 5

HR1 1 /4 -XBC 1 . 2 5 0.7 5 0 .7 5 0 0 1 1/4 5 /8 3 /4 1 6 1 /4 5 /1 6 3 /3 2 3 /1 6 7 /8 .7 5 0 0 1 0 0 0 4 0 6 0 8 6 0 0

HR1 3 /8 -XBC 1 . 3 7 5

HR1 1 /2 -XBC 1 . 5 0 0.8 7 5 .8 7 5 0 1 1/2 3 /4 7 /8 1 4 5 /1 6 3 /8 3 /3 2 3 /1 6 15 /1 6 .8 7 5 0 2 0 0 0 5 3 3 0 11 3 0 0

HR1 5 /8 -XBC 1 . 6 2 5

HR1 3 /4 -XBC 1 . 7 5 01 .0 00 1 .0 00 0 1 3/4 7 /8 1 1 4 5 /1 6 7 /1 6 3 /3 2 3 /1 6 1

3/3 2 1 .0 0 0 0 2 5 0 0 7 6 0 0 1 5 8 7 0

HR1 7 /8 -XBC 1 . 8 7 5

HR2-XBC 2 . 0 0 01 .2 5 0 1 .1 2 5 0 2 1 1 1/81 2 7 /1 6 1 /2 5 /3 2 3 /1 6 1

7/3 2 1.1 2 5 0 3 0 0 0 1 0 0 5 0 2 20 0 0

HR2 1 /4 -XBC 2 . 2 5 0

HR2 1 /2 -XBC 2 . 5 0 01 .5 00 1 .2 50 0 2 1/4 1

1/8 11/41 2 1 /2 9 /1 6 5 /3 2 3 /1 6 1

5/1 6 1.2 5 0 0 4 0 0 0 1 5 2 8 0 3 30 0 0

HR2 3 /4 -XBC 2 . 7 5 0

HR3-XBC 3 . 0 0 01 .7 50 1 .5 00 0 2 1/2 1

1/4 11/21 2 5 /8 5 /8 5 /3 2 1 /4 1

3/4 1 .5 0 0 0 5 0 0 0 2 0 2 0 0 4 99 0 0

HR3 1 /4 -XBC 3 . 2 5 0

HR3 1 /2 -XBC 3 .5 00 2 .0 00 1 .7 50 0 2 3/4 1 3/8 1 3/41 2 5 /8 1 1 /1 6 5 /3 2 1 /4 1 1 5/1 6 1 .7 5 0 0 6 0 0 0 2 9 6 6 0 6 30 0 0

HR4-XBC 4 .0 00 2 .2 50 2 .0 00 0 3 1/2 11/2 2 1 2 3 /4 3 /4 5 /3 2 1 /4 2

1/4 2 .0 0 0 0 8 0 0 0 3 5 9 8 0 9 00 0 0



B M

A

T

D

HEX

1/32

H

S

N

P

HR-BC & HR-XBC

Crowned Heavy Stud

Hex-Drive Socket

Heavy Stud

with Crowned Outer RaceHex-Drive SocketSealed or UnsealedX = Sealed



R



31/115

24

SMITHBearing Number D A B W E Recommended Shaft Dia. R

Roller Bore Roller Overall Min Basic Max CroO.D. Nominal Tolerance Width Width Clamping Dynamic Static Rad

+.000 +.000 +.005 Dia. Rating Capacity (IncUNSEALED SEALED -.001 -.005 -.010 (lbs) (lbs)

Slip Fit Press Fit

Max. Min. Max. Min.

YR3 /4 -C YR3 /4 -XC . 750.5 0 0 .5 6 2 5 1 /2 .2 4 9 7 .2 4 9 3 . 2 5 0 5 .2 5 0 1 2 1 4 0 4 1 7 0 1 0

YR7 /8 -C YR7 /8 -XC . 875

YR1 -C YR1 -XC 1 . 0 0 0.6 2 5 .6 8 7 5 5 /8 .3 1 2 2 3 1 1 8 .3 1 3 0 .3 1 2 6 3 0 3 0 6 2 0 0 1 2

YR1 1 /8 -C YR11 /8 -XC 1 . 1 2 5

YR1 1 /4 -C YR11 /4 -XC 1 . 2 5 0

.7 5 0 .8 1 2 5 3 /4 .3 7 4 7 .3 7 4 3 .3 7 5 5 .3 7 5 1 4 4 7 0 0 8 6 0 0 1 4

YR1 3 /8 -C YR13 /8 -XC 1 . 3 7 5

YR1 1 /2 -C YR11 /2 -XC 1 . 5 0 0

.8 7 5 .9 3 7 5 5 7 /6 4 .4 3 7 2 .4 3 6 8 .4 3 8 0 .4 3 7 6 5 5 6 0 1 1 3 0 0 2 0

YR1 5 /8 -C YR15 /8 -XC 1 . 6 2 5

YR1 3 /4 -C YR13 /4 -XC 1 . 7 5 0

1 .0 0 0 1 .0 6 2 5 1 3/64 .4 9 9 7 .4 9 9 3 .5 0 0 7 .5 0 0 3 7 8 7 0 1 5 8 7 0 2 0

YR1 7 /8

-C YR1 7 /8

-XC 1 . 8 7 5

YR2 -C YR2 -XC 2 . 0 0 01 .2 5 0 1 .3 1 2 5 1 1 3/6 4 .6 2 4 7 .6 2 4 3 .6 2 5 7 . 6 2 5 3 1 0 3 7 0 2 2 0 0 0 2 4

YR2 1 /4 -C YR21 /4 -XC 2 . 2 5 0

YR2 1 /2 -C YR21 /2 -XC 2 . 5 0 0

1 .5 0 0 1 .5 6 2 5 1 5/16 .7 4 9 7 .7 4 9 3 .7 5 0 7 .7 5 0 3 1 5 2 8 0 3 3 0 0 0 3 0

YR2 3 /4 -C YR23 /4 -XC 2 . 7 5 0

YR3 -C YR3 -XC 3 . 0 0 01 .7 5 0 1 .8 1 2 5 1 3/4 .9 9 9 6 .9 9 9 2 1 .0 0 0 8 1 .0 0 0 3 2 0 2 0 0 0 4 9 9 0 0 3 0

YR3 1 /4 -C YR31 /4 -XC 3 . 2 5 0

YR3 1 /2 -C YR31 /2 -XC 3 .5 0 0 2 .0 0 0 2.0 6 2 5 2 1 .1 2 4 6 1 .1 2 4 1 1 .1 2 5 8 1 .1 2 5 3 2 9 6 6 0 6 3 3 0 0 3 0

YR4 -C YR4 -XC 4 .0 0 0 2 .2 5 0 2 .3 1 2 5 2 1/4 1 .2 49 6 1 .2 49 1 1 .2 5 08 1 .2 50 3 3 5 98 0 9 00 00 3

YR5-XC 5 .0 0 0 2 .7 5 0 2.8 7 5 0 3 1 .7 4 9 6 1 .7 4 9 1 1 .7 5 0 8 1 .7 5 0 3 4 9 7 5 0 1 3 6 0 0 0 4 8

YR6-XC 6 .0 0 0 3 .2 5 0 3 .3 7 5 0 3 1/2 2 .2 49 6 2 .2 49 1 2 .2 50 8 2 .2 50 3 7 14 00 1 62 00 0 5

+ . 0 0 0 2

. 0 0 0 4

. 2 5 0 0

. 3 1 2 5

. 3 7 5 0

. 4 3 7 5

. 5 0 0 0

. 6 2 5 0

. 7 5 0 0

1 . 0 0 0 0

1 . 1 2 5 0

1 . 2 5 0 0

1 . 7 5 0 0

2 . 2 5 0 0

+ . 0 0 0 1

. 0 0 0 5

W

A ED

B

R

YR-C &YR-XC

Crowned Yoke Type

Crowned Outer Racefor Shaft MountingSealed or UnsealedX = Sealed





32/115

C a m F o l l o w e r s ( N e e d l e R o l l e r s

Heavy DutyRollers

Double Row

The SMITH DCR & DYR Series

are Cam Followers with a

Double set of Heavy Rollers

and Thicker Outer Rings

for increased load handling

and extended life.

DCR Series

Stud Type

DYR Series

Yoke Type

Heavy DutyRollers

Double Row

S M I T H B E A R I N G

I N C H S I Z E S




33/115

DCR-1 1 /2 1 .5 00 .87 5 .6 2 5 1 .50 0 .7 5 0 5 /8 -1 8 3 /8 5 ,6 6 0 6 ,1 8 0 2 ,4 7 0 3 ,2 60 3 2

DCR-15

/8 1 .6 25 .87 5 .6 2 5 1 .50 0 .7 5 0 5 /8 -1 8 3 /8 5 ,6 6 0 6 ,1 8 0 2 ,8 9 0 3 ,5 30 3 2

DCR-1 3 /4 1 .7 50 1 .00 0 .7 5 0 1 .75 0 .8 7 5 3 /4 -1 6 3 /8 8 ,4 0 0 10 ,8 0 0 3 ,2 0 0 4 ,4 60 6 2

DCR-1 7 /8 1 .8 75 1 .00 0 .7 5 0 1 .75 0 .8 7 5 3 /4 -1 6 3 /8 8 ,4 0 0 10 ,8 0 0 3 ,9 1 0 4 ,7 50 6 2

DCR-2 2 .0 00 1 .25 0 .8 7 5 2 .00 0 1 .0 0 0 7 /8 -1 4 1 /2 1 2 ,8 0 0 17 ,7 0 0 5 ,4 0 0 6 ,4 00 7 5

DCR-2 1 /4 2 .2 50 1 .25 0 .8 7 5 2 .00 0 1 .0 0 0 7 /8 -1 4 1 /2 1 2 ,8 0 0 17 ,7 0 0 6 ,8 0 0 7 ,2 00 7 5

DCR-2 1 /2 2 .5 00 1 .50 0 1 .0 0 0 2 .25 0 1 .1 2 5 1 -1 4 9 /1 6 1 7 ,3 0 0 20 ,8 0 0 9 ,0 0 0 9 ,2 00 1 0 8

DCR-2 3 /4 2 .7 50 1 .50 0 1 .0 0 0 2 .25 0 1 .1 2 5 1 -1 4 9 /1 6 1 7 ,3 0 0 20 ,8 0 0 1 0 ,8 0 0 1 0 ,2 00 1 0 8

DCR-3 3 .0 00 1 .75 0 1 .2 5 0 2 .50 0 1 .2 5 0 1 1/4 -1 2 5 /8 2 9 ,7 0 0 40 ,2 0 0 1 4 ,7 0 0 1 3 ,1 00 1 6 6

DCR-3 1 /4 3 .2 50 1 .75 0 1 .2 5 0 2 .50 0 1 .2 5 0 11/4 -1 2 5 /8 2 9 ,7 0 0 40 ,2 0 0 1 7 ,5 0 0 1 4 ,1 00 1 6 6

DCR-3 1 /2 3 .5 00 2 .00 0 1 .3 7 5 2 .75 0 1 .3 7 5 13/8 -1 2 5 /8 3 7 ,0 0 0 49 ,5 0 0 2 1 ,0 0 0 1 7 ,0 00 2 0 8

DCR-4 4 .0 00 2 .25 0 1 .5 0 0 3 .50 0 1 .5 0 0 1 1/2 -1 2 3 /4 4 6 ,7 0 0 58 .8 0 0 2 3 ,4 0 0 2 1 ,6 00 2 5 0

DCR-5 5 .0 00 2 .75 0 2 .0 0 0 5 .06 2 1 .5 6 3 2 -1 2 1 7 2 ,4 0 0 98 ,4 0 0 4 3 ,3 0 0 3 4 ,4 20 2 5 0

DCR-6 6 .0 00 3 .25 0 2 .5 0 0 6 .00 0 3 .0 0 0 2 1/2 -1 2 1 9 3 ,8 0 0 16 0 ,0 0 0 5 9 ,5 0 0 5 0 ,5 00 2 5 0

G e nera l Informa t ion

The SMITH DCR series is designed to meet higher performance requirements. Bearings areprovided with a double row of Heavy Duty Rollers, thicker outer ring and contac t seals allwhich provide a longer life. Consult our Engineering Department for special variations.

26

D C d B1 G1 G Bearing Bearing Max. Track MaxRoller Roller Stud Stud Eff. Thread HEX Dynamic Static Allow Capacity ClamO.D. Width Dia. Length Thread U.N.F. Size Capacity Capacity Load at 40RC Torqu

+.000 +.000 +.001 Min. Class (lbs) (lbs) (lbs) (lbs) (lbs-ftSEALED -.001 -.005 -.000 2A

SMITH BearingNumber

1) Add suff ix C for Crowned Outer Race. Example: DCR2-C.

2) Lubrication Holes available upon request.

3) Available Unsealed upon request.

B1C

D

d

G1

G

Hex

DCR

Double Row Heavy Roller

Stud Type

Shielded Full Complement

Hex-Drive Socket


D o u b l e R o w

C a m F o l l o w e r s N e e d l e R o l l e r s I N C H S I Z E S


INTERCHANGE

SM ITH RBC

DCR-11/2 RBC-11/2DCR-15/8 RBC-15/8DCR-13/4 RBC-13/4DCR-17/8 RBC-17/8DCR-2 RBC-2DCR-21/4 RBC-21/4DCR-21/2 RBC-21/2DCR-23/4 RBC-23/4DCR-3 RBC-3DCR-31/4 RBC-31/4DCR-31/2 RBC-31/2DCR-4 RBC-4DCR-5 RBC-5DCR-6 RBC-6

Bearings are dimensionallyinterchangeable, howeverinternal design variesbetween manufacturers.


34/115

G ene ra l In forma t ion

The SMITH DYR series is designed to meet higher performance requirements. Bearings areprovided with a double row of Heavy Duty Rollers, thicker outer ring and contac t seals allwhich provide a longer life. Consult our Engineering Department for special variations.

D d C B d1 Bearing Bearing Max TrackRoller Bore Roller Overall Shoulder Dynamic Static Allow. CapacitO.D. Diameter Tolerance Width Width Diameter Capacity Capacity Load at 40 R

+.000 +.000 + .005 (lbs) (lbs) (lbs) (lbs)SEALED -.001 -.005 -.010

DYR-1 1 /2 1 .5 0 0 .4 3 75 .8 7 5 .9 37 5 .75 0 5 ,6 6 0 6 ,1 8 0 3 ,20 0 3 ,2 6

DYR-1 5 /8 1 .6 2 5 .4 3 75 .8 7 5 .9 37 5 .75 0 5 ,6 6 0 6 ,1 8 0 3 ,42 0 3 ,5 3

DYR-1 3 /4 1 .7 5 0 .5 0 0 1 .0 0 0 1 .0 62 5 1 .00 0 8 ,4 0 0 1 0 ,8 0 0 4 ,10 0 4 ,4 6

DYR-1 7 /8 1 .8 7 5 .5 0 0 1 .0 0 0 1 .0 62 5 1 .00 0 8 ,4 0 0 1 0 ,8 0 0 5 ,48 0 4 ,7 5

DYR-2 2 .0 0 0 .6 2 5 1 .2 5 0 1 .3 12 5 1 .12 5 1 2 ,8 0 0 1 7 ,7 0 0 7 ,05 0 6 ,4 0

DYR-2 1 /4 2 .2 5 0 .6 2 5 1 .2 5 0 1 .3 12 5 1 .12 5 1 2 ,8 0 0 1 7 ,7 0 0 10 ,98 0 7 ,2 0

DYR-2 1 /2 2 .5 0 0 .7 5 0 1 .5 0 0 1 .5 62 5 1 .25 0 1 7 ,3 0 0 2 0 ,8 0 0 13 ,30 0 9 ,2 0

DYR-2 3 /4 2 .7 5 0 .7 5 0 1 .5 0 0 1 .5 62 5 1 .25 0 1 7 ,3 0 0 2 0 ,8 0 0 17 ,20 0 1 0 ,2 0

DYR-3 3 .0 0 0 1 .0 0 0 1 .7 5 0 1 .8 12 5 1 .50 0 2 9 ,7 0 0 4 0 ,2 0 0 18 ,80 0 1 3 ,1 0

DYR-3 1 /4 3 .2 5 0 1 .0 0 0 1 .7 5 0 1 .8 12 5 1 .50 0 2 9 ,7 0 0 4 0 ,2 0 0 26 ,20 0 1 4 ,1 0

DYR-3 1 /2 3 .5 0 0 1 .1 2 5 2 .0 0 0 2 .0 62 5 1 .62 5 3 7 ,0 0 0 4 9 ,5 0 0 28 ,70 0 1 7 ,0 0

DYR-4 4 .0 0 0 1 .2 5 0 2 .2 5 0 2 .3 12 5 1 .75 0 4 6 ,7 0 0 5 8 ,8 0 0 30 ,50 0 2 1 ,6 0

DYR-5 5 .0 0 0 1 .7 5 0 2 .7 5 0 2 .8 75 0 2 .25 0 7 2 ,4 0 0 9 8 ,4 0 0 56 ,60 0 3 4 ,4 2

DYR-6 6 .0 0 0 2 .2 5 0 3 .2 5 0 3 .3 75 0 3 .00 0 9 3 ,8 0 0 16 0 ,0 0 0 76 ,00 0 5 0 ,5 0

SMITH BearingNumber

1) Add suff ix C for Crowned Outer Race. Example: DYR2-C.

2) Lubrication Holes available upon request.

3) Available Unsealed upon request.

C

D

B

d1d

D o u b l e R o w

C a m F o l l o w e r s N e e d l e R o l l eI N C H S I Z E S

DYR

Double Row Heavy Roller

Yoke Type

Shielded Full Complement


+ . 0 0 0 2

. 0 0 0 4

+ . 0 0 0 1

. 0 0 0 5


INTERCHANGE

SM ITH RBC

DYR-11/2 RBY-11/2DYR-15/8 RBY-15/8DYR-13/4 RBY-13/4DYR-17/8 RBY-17/8DYR-2 RBY-2DYR-21/4 RBY-21/4DYR-21/2 RBY-21/2DYR-23/4 RBY-2-3/4DYR-3 RBY-3DYR-31/4 RBY-31/4DYR-31/2 RBY-31/2DYR-4 RBY-4DYR-5 RBY-5DYR-6 RBY-6

Bearings are dimensionallyinterchangeable, however

internal design variesbetween manufacturers.


35/115

Regular Stud Unsealed

SM ITH M c G ill RBC To rring to n

CR 1/2-A CF 1/2-N CR 8CR 1/2 CF 1/2 S 16 CR 8-1CR 9/16 CF 9/16 S 18 CR 5/8-A CF 5/8-N CR 10CR 5/8 CF 5/8 S 20 CR 10-1CR 11/16 CF 11/16 S 22 CR 3/4 CF 3/4 S 24 CR 12CR 7/8 CF 7/8 S 28 CR 14CR 1 CF 1 S 32 CR 16CR 11/8 CF 11/8 S 36 CR 18CR 11/4 CF 11/4 S 40 CR 20CR 13/8 CF 13/8 S 44 CR 22

CR 11/2 CF 11/2 S 48 CR 24CR 15/8 CF 15/8 S 52 CR 26CR 13/4 CF 13/4 S 56 CR 28CR 17/8 CF 17/8 S 60 CR 30CR 2 CF 2 S 64 CR 32CR 21/4 CF 21/4 S 72 CR 36CR 21/2 CF 21/2 S 80 CR 40CR 23/4 CF 23/4 S 88 CR 44CR 3 CF 3 S 96 CR 48CR 31/4 CF 31/4 S 104 CR 52CR 31/2 CF 31/2 S 112 CR 56CR 4 CF 4 S 128 CR 64CR 5 CF 5 S 160 CR 80CR 6 CF 6 S 192 CR 96

Yoke Roller UnsealedSM ITH M c G ill RBC To rring to n

YR 3/4 CYR 3/4 Y-24 YCR 12YR 7/8 CYR 7/8 Y-28 YCR 14YR 1 CYR 1 Y-32 YCR 16YR 11/8 CYR 11/8 Y-36 YCR 18YR 11/4 CYR 11/4 Y-40 YCR 20YR 13/8 CYR 13/8 Y-44 YCR 22YR 11/2 CYR 11/2 Y-48 YCR 24YR 15/8 CYR 15/8 Y-52 YCR 26YR 13/4 CYR 13/4 Y-56 YCR 28YR 17/8 CYR 17/8 Y-60 YCR 30YR 2 CYR 2 Y-64 YCR 32YR 21/4 CYR 21/4 Y-72 YCR 36

YR 21/2 CYR 2

1/2 Y-80 YCR 40YR 23/4 CYR 23/4 Y-88 YCR 44

YR 3 CYR 3 Y-96 YCR 48YR 31/4 CYR 31/4 Y-104 YCR 52YR 31/2 CYR 31/2 Y-112 YCR 56YR 4 CYR 4 Y-128 YCR 64YR 5 CYR 5 Y-160 YCR 80YR 6 CYR 6 Y-192 YCR 96

Heavy Stud Unsealed

SM ITH M c G ill RBC

HR 1/2 CFH 1/2 H-16HR 5/8 CFH 5/8 H-20HR 3/4 CFH 3/4 H-24HR 7/8 CFH 7/8 H-28HR 1 CFH 1 H-32HR 11/8 CFH 11/8 H-36HR 11/4 CFH 11/4 H-40HR 13/8 CFH 13/8 H-44HR 11/2 CFH 11/2 H-48HR 15/8 CFH 15/8 H-52HR 13/4 CFH 13/4 H-56HR 17/8 CFH 17/8 H-60

HR 2 CFH 2 H-64HR 21/4 CFH 21/4 H-72HR 21/2 CFH 21/2 H-80HR 23/4 CFH 23/4 H-88HR 3 CFH 3 H-96HR 31/4 CFH 31/4 H-104HR 31/2 CFH 31/2 H-112HR 4 CFH 4 H-128

28

Optional Features SM ITH M c G ill RBC To rring to n

Hex-Drive Add Suffix B Add Suffix B Add Suffix W Add Prefix BEccentric Add Suffix E Add Suffix E Add Suffix X Add Prefix ECr owned O. D . Add Suffix C Add Prefix C Add Prefix C Add Prefix CThrust Se a l Add Suffix L Replace S with L


I N T E R C H A N G E T A B L E S

Unsealed C a m F o l l o w e r s



36/115

Regular Stud Sealed

SM ITH M c G ill RBC To rring to n

CR 1/2-AX CF 1/2-N-S CRS 8CR 1/2-X CF 1/2 -S S 16 -S CRS 8-1CR 9/16-X CF 9/16-S S 18 -S CR 5/8-AX CF 5/8-N-S CRS 10CR 5/8 -X CF 5/8 -S S 20 -S CRS 10-1CR 11/16-X CF 11/16-S S 22 -S CR 3/4 -X CF 3/4 -S S 24 -S CRS 12CR 7/8 -X CF 7/8 -S S 28 -S CRS 14CR 1-X CF 1 -S S 32 -S CRS 16CR 11/8 -X CF 11/8 -S S 36 -S CRS 18CR 11/4 -X CF 11/4 -S S 40 -S CRS 20CR 13/8 -X CF 13/8 -S S 44 -S CRS 22

CR 11/2 -X CF 11/2 -S S 48 -S CRS 24CR 15/8 -X CF 15/8 -S S 52 -S CRS 26CR 13/4 -X CF 13/4 -S S 56 -S CRS 28CR 17/8 -X

Documents

Smith Bearing