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Tapered Roller Bearings - SR (Matched Bearing Assembly, SET-RIGHT™)
Unit of Measure

Specifications

Cone Part Number

 N/A JM207049

Cup Part Number

 N/A JM207010

Inner Spacer Part Number

 N/A M207049XS

Outer Spacer Part Number

 N/A M207010ES

Snap Ring Part Number

 N/A K518779R

Design Unit

 N/A Metric

Dimensions

d - Bore

 N/A 55 mm2.1654 in

D - Cup Outer Diameter

 N/A 95 mm3.7402 in

T - Width

 N/A 64 mm2.5197 in

C - Width

 N/A 52.418 mm2.0637 in

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 1.520 mm0.06 in
r - Cup Backface "To Clear" Radius2 N/A 0.5 mm0.020 in

db - Cone Backface Backing Diameter

 N/A 64 mm2.52 in

Da - Cup Frontface Backing Diameter

 N/A 91.90 mm3.62 in

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)3 N/A 33800 N7610 lbf
C1 - Dynamic Radial Rating (1 million revolutions)4 N/A 227000 N51100 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)5 N/A 19400 N4360 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 N/A 58900 N13200 lbf

Factors

K - Factor7 N/A 1.74
e - ISO Factor8 N/A 0.33
Y1 - ISO Factor9 N/A 2.02
Y2 - ISO Factor10 N/A 3
  • 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 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 5 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.
  • 6 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.
  • 7 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 8 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 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.
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