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*** 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.


  • AIMS SKU A0157496
  • Brand Koyo
  • Model Number CRSB-40/KOYO
  • Width (inch) 1
  • D2 (mm) 4.78
  • D3 (in) 0.125
  • B3 (in) 0.562
  • D2 (in) 0.188
  • Inside Diameter (inch) 1 1/2
  • G1 Min. (in) 1.125
  • Ka Min. 39.78
  • Speed Rating Grease 1400
  • Load Rating Track Roller Dynamic Cw (kn) 44.48
  • G1 min. (mm) 28.57
  • D-0.025 -0.001 (mm) 63.5
  • D4 (in) -
  • G UNF 1-14(1)
  • da Min. 42.88
  • D3 (mm) 3.18
  • B2 (nom.) (in) 2.25
  • Ras Max Max. 2.29
  • Load Rating Track Roller Static F0r Perm (kn) 104.09
  • Load Rating Bearing Static C0 (kn) 117.43
  • B2 (nom.) (mm) 57.2
  • d1+0.025 +0.001 (mm) 25.4
  • D4 (mm) -
  • B3 (mm) 14.27
  • Outside Diameter (inch) 2 1/2
  • Clamping Torque 254.25
  • Db Bore Dia For Stud +0.013+0.0005 25.4
  • Load Rating Track Roller Dynamic Fr Perm (kn) 54.71
  • Load Rating Bearing Dynamic C (kn) 58.27
  • C-0.13 -0.005 (mm) 38.1
  • Type Cam Follower
SKU: A0157496

Koyo/JTEKT Cam Follower Full Comp. Hex 2RS Cylindrical Outer Ring 1 x 2-1/2 x 1-1/2"

Cam Follower Full Complement 2RS Cylindrical Outer Ring


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