Description

*** JTEKT (formerly Koyo Brand) ***

Cam Follower Full Complement 2RS Cylindrical Outer Ring

CRSB Series.
Inch Series.
Regular stud-type, full complement needle roller.
Hexagonal wrench socket in stud head (stud-type only).
Seal with internal thrust washer

About Stud-Type Track Rollers Inch Series (CRSB)

Non-separable, sealed unit with outer ring, a full complement of needle rollers, stud seals, self-lubricating resin internal thrust washers, and stud-fastened retaining washer.
Seals help retain lubricant and exclude foreign matter (CRS Series).
Hexagonal wrench socket in stud head for mounting.
Re-lubrication via axially drilled hole through stud with cross-drilled holes in stud raceway and shank.
The recessed axial hole accepts standard nominal-inch drive-type grease lubrication fitting.
Lubrication fitting plugs are furnished to close off unused holes.
Tolerance limits for outer diameters of stud and outer ring refer to "single mean diameter".
A close fit between the stud and hole is required for mounting.
Bore dimensions given below result in varying fit (0.025 mm tight to 0.013 mm lose [0.0010 in. tight to 0.0005 in. loose]).
The retaining washer should be firmly backed up by a flat housing shoulder (perpendicular to the stud axis).
The shoulder diameter should be at least the same size as the minimum clamping diameter listed.
May be mounted with two thin lock nuts, or a nut and lock washer.

Specifications

AIMS SKU A0157496

Brand Koyo

Model Number CRSB-40/KOYO

D2 (mm) 4.78

Width (inch) 1

G1 Min. (in) 1.125

B2 (nom.) (in) 2.25

Clamping Torque 254.25

Ka Min. 39.78

Ras Max Max. 2.29

Db Bore Dia For Stud +0.013+0.0005 25.4

Speed Rating Grease 1400

Load Rating Track Roller Static F0r Perm (kn) 104.09

Load Rating Track Roller Dynamic Fr Perm (kn) 54.71

Load Rating Track Roller Dynamic Cw (kn) 44.48

Load Rating Bearing Static C0 (kn) 117.43

Load Rating Bearing Dynamic C (kn) 58.27

G1 min. (mm) 28.57

B2 (nom.) (mm) 57.2

C-0.13 -0.005 (mm) 38.1

D-0.025 -0.001 (mm) 63.5

d1+0.025 +0.001 (mm) 25.4

D3 (in) 0.125

D4 (in) -

D4 (mm) -

B3 (in) 0.562

G UNF 1-14(1)

B3 (mm) 14.27

D2 (in) 0.188

da Min. 42.88

Outside Diameter (inch) 2 1/2

Inside Diameter (inch) 1 1/2

D3 (mm) 3.18

Type Cam Follower

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Resources

Koyo Needle Roller Bearing Product Catalogue

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Cam Followers

Browse other products by

Koyo

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