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Unit of Measure

Other Dimensions

Weight

 N/A 1.28 Kg2.8 lb

Width (T)

 N/A 4.1797 in106.164 mm

C - Width

 N/A 3.7809 in96.035 mm
Max Shaft Fillet Radius1 N/A 0.14 in3.6 mm
Max Housing Fillet Radius2 N/A 0.03 in0.6 mm

Shaft Backing Shoulder Diameter - Backface (db)

 N/A 1.77 in45 mm

Housing Backing Shoulder Diameter - Frontface (Da)

 N/A 2.48 in62.99 mm

Key Dimensions

Cone Part Number

 N/A 2585

Cup Part Number

 N/A 2520

Inner Spacer Part Number

 N/A X3S-2585

Outer Spacer Part Number

 N/A Y1S-2520

Design Unit

 N/A Inch

Bore (d)

 N/A 1.3125 in33.338 mm

O.D. (D)

 N/A 2.6150 in66.421 mm
Dynamic Radial Load Rating - 90M Revs (C90) 3 N/A 4880 lbf21700 N
Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row)4 N/A 8500 lbf37800 N
K Factor 5 N/A 2.14
e Factor 6 N/A 0.27

Ratings

C1 - Dynamic Radial Rating (1 million revolutions)7 N/A 32800 lbf146000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)8 N/A 2280 lbf10200 N

Factors

Y1 Factor 9 N/A 2.47
Y2 Factor 10 N/A 3.67
  • 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.