Description

*** JTEKT (Formerly Koyo Brand) ***

Roller Follower Cylindrical Yoke Roller Assembly (YCRS)

Yoke-type track roller.
Non-separable unit with outer ring, a full complement of needle rollers, inner ring, self-lubricating resin internal thrust washers, and two retaining washers securely fastened to the inner ring.
Seals in counterbores of outer ring seal against the retaining washers; retain lubricant and exclude foreign matter (YCRS Series).
Crowned outer ring to support the uneven bearing load.
Tolerance limits for outer diameters of stud and outer ring refer to "single mean diameter".
The machine element with the holes in which the mounting bolt is supported must be sufficiently rigid to resist local crushing under the applied load and to resist bending which can cause uneven loading of the rollers.
When the applied loads are high, the tight transition fit should be used in conjunction with a high-strength shaft or bolt.
When loads are moderate, the loose transition fit may be used with a high-strength shaft or bolt. For light loads, the loose with a high strength shaft or bolt. For light loads, the loose

About Track Roller

Track rollers (also known as cam followers) are characterized by their thick-walled outer rings that run directly on a track.
The thick outer rings permit high load-carrying capability while minimizing both distortion and bending stresses.
Sealed designs with internal thrust washers help extend service life under conditions of infrequent lubrication.

Features

Available in two basic designs: with an inner ring for straddle mounting in a yoke or with an integral stud for cantilever mounting.

Benefits

High load-carrying capability with minimized distortion and bending stresses.
Extended service life under conditions of infrequent re-lubrication.

Specifications

AIMS SKU A0157723

Brand Koyo

Model Number YCRS-12/KOYO

Width (mm) 9/16

C -0.13 / -0.005 (mm) 12.7

Shaft Bolt Dia (s) Tight Fit H6 Min (in) 0.2501

Shaft Bolt Dia (s) Tight Fit H6 Max (in) 0.2505

Shaft Bolt Dia (s) Loose Fit F7 Min (in) 0.2493

Shaft Bolt Dia (s) Loose Fit F7 Max (in) 0.2497

B (nom)(in) 0.116

C 0-0.13/0-0.005 (in) 0.5

D Min. (in) 0.2496

Clamping Diameter Min 0.61

Shaft Bolt Dia (s) Tight Fit H6 Min Mm 6.353

Shaft Bolt Dia (s) Tight Fit H6 Max (mm) 6.363

Shaft Bolt Dia (s) Loose Fit F7 Min (mm) 6.332

Shaft Bolt Dia (s) Loose Fit F7 Max (mm) 6.342

B (nom)(mm) 2.95

B +0.13+0.005/-0.25 -0.01 (mm) 14.28

D Min. (mm) 6.34

D Max. (mm) 6.355

D 0-0.025/0 -0.001 (mm) 19.05

Load Rating Track Roller Static Fr Perm (kn) 1570

Speed Rating Grease 3800

Load Rating Track Roller Dynamic Fr Perm (kn) 656

Load Rating Track Roller Dynamic Cw (kn) 1410

Load Rating Bearing Static C0 (kn) 3300

Load Rating Bearing Dynamic C (kn) 2280

Outside Diameter (mm) 3/4

Inside Diameter (mm) 1/4

Type Roller Follower Yoke Type

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Resources

Koyo Torrington Needle Roller Bearings

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Cam Followers

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