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Unit of Measure

Other Dimensions

Weight

 N/A 5.54 Kg12.22 lb

Width (T)

 N/A 2.375 in60.325 mm

B - Width

 N/A 2.344 in59.538 mm
Max Shaft Fillet Radius1 N/A 0.010 in0.3 mm
Max Housing Fillet Radius2 N/A 0.13 in3.3 mm

Shaft Backing Shoulder Diameter - Backface (db)

 N/A 3.98 in101 mm

Housing Backing Shoulder Diameter - Frontface (Da)

 N/A 5.16 in131.06 mm

Key Dimensions

Cone Part Number

 N/A 497

Cup Part Number

 N/A 493

Related Assembly Number(s)

 N/A 497-90219 497-902A7 497-902B1 497-90307 497-90323

Outer Spacer Part Number

 N/A Y4S-493

Design Unit

 N/A Inch

Bore (d)

 N/A 3.375 in85.725 mm

O.D. (D)

 N/A 5.375 in136.525 mm
Dynamic Radial Load Rating - 90M Revs (C90) 3 N/A 9000 lbf40000 N
Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row)4 N/A 15700 lbf69700 N
K Factor 5 N/A 1.31
e Factor 6 N/A 0.44

Ratings

C1 - Dynamic Radial Rating (1 million revolutions)7 N/A 60500 lbf269000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)8 N/A 6850 lbf30500 N

Factors

Y1 Factor 9 N/A 1.52
Y2 Factor 10 N/A 2.26
  • 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.