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.
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Unit of Measure

Other Dimensions

Weight

 N/A 1.15 Kg2.57 lb

Width (T)

 N/A 52 mm2.0472 in

C - Width

 N/A 42.504 mm1.6734 in
Max Shaft Fillet Radius1 N/A 1.520 mm0.060 in
Max Housing Fillet Radius2 N/A 0.5 mm0.02 in

Shaft Backing Shoulder Diameter - Backface (db)

 N/A 65 mm2.56 in

Housing Backing Shoulder Diameter - Frontface (Da)

 N/A 86.40 mm3.40 in

Key Dimensions

Cone Part Number

 N/A JLM506849

Cup Part Number

 N/A JLM506810

Inner Spacer Part Number

 N/A LM506849XS

Outer Spacer Part Number

 N/A LM506810ES

Snap Ring Part Number

 N/A K516778R

Design Unit

 N/A Metric

Bore (d)

 N/A 55.000 mm2.1654 in

O.D. (D)

 N/A 90.000 mm3.5433 in
Dynamic Radial Load Rating - 90M Revs (C90) 3 N/A 28200 N6340 lbf
Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row)4 N/A 49100 N11000 lbf
K Factor 5 N/A 1.45
e Factor 6 N/A 0.4

Ratings

C1 - Dynamic Radial Rating (1 million revolutions)7 N/A 190000 N42600 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)8 N/A 19400 N4370 lbf

Factors

Y1 Factor 9 N/A 1.68
Y2 Factor 10 N/A 2.5
  • 1 These maximum fillet radii will be cleared by the bearing corners.
  • 2 These maximum fillet radii will be cleared by the bearing corners.
  • 3 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 4 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.
  • 5 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 6 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 7 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 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.