SR bearings are made to a standard setting range, based on Timken’s Set-Right™ automated setting technique, and are suitable for most industrial applications. They have two spacers and an optional snap-ring for axial location. Because both types are made from popular sizes of single-row bearings, they provide a low-cost choice for many applications.

Design Attributes:
  • Two TS bearings mounted indirectly with cone and cup spacers.
  • Cup spacer features lubrication slots to allow commercial snap rings to locate bearings axially.
  • Two J-Line™ Class N bearings with metric envelop and non-metric internal geometry.
Unit of Measure

Key Dimensions

Cone Part Number

 N/A HM88649

Cup Part Number

 N/A HM88610

Inner Spacer Part Number

 N/A K152757

Snap Ring Part Number

 N/A K152758

Bore (d)

 N/A 34.925 mm1 3/8 in

O.D. (D)

 N/A 72.233 mm2.8438 in

Width (T)

 N/A 55.73 mm2.1941 in
Dynamic Radial Load Rating - 1M Revs (C1)1 N/A 134000 N30100 lbf
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 19900 N4480 lbf
Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row)3 N/A 34700 N7790 lbf
e Factor 4 N/A 0.55
K Factor 5 N/A 1.07

Other Dimensions

Weight

 N/A 1.03 Kg2.29 lb

Outer Ring Width (C)

 N/A 44.614 mm1.7565 in
Max Shaft Fillet Radius6 N/A 2.29 mm0.09 in
Max Housing Fillet Radius7 N/A 2.29 mm0.090 in

Shaft Backing Shoulder Dia. - Backface (db)

 N/A 48.5 mm1.91 in

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 69.1 mm2.74 in

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)8 N/A 18600 N4180 lbf

Factors

Y1 Factor 9 N/A 1.24
Y2 Factor 10 N/A 1.84
  • 1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 2 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 3 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.
  • 4 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 5 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 6 These maximum fillet radii will be cleared by the bearing corners.
  • 7 These maximum fillet radii will be cleared by the bearing corners.
  • 8 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.
  • 9 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 10 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.