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The configuration of the TDO provides a wide effective bearing spread, making it ideal for applications in which overturning moments are a significant load component. TDO bearings can be used in fixed positions or allowed to float in the housing bore.
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Unit of Measure

Other Dimensions

Weight

 N/A 3.281 Kg7.23 lb

C - Double Cup Width

 N/A 2.125 in53.975 mm
Max Housing Fillet Radius1 N/A 0.03 in0.8 mm

Housing Backing Shoulder Diameter - Frontface (Da)

 N/A 5.16 in130.05 mm

Key Dimensions

Series

 N/A 495

Cup Part Number

 N/A 493D

O.D. (D)

 N/A 5.375 in136.525 mm
K Factor 2 N/A 1.31
e Factor 3 N/A 0.44

Factors

Y1 Factor 4 N/A 1.52
Y2 Factor 5 N/A 2.26

G1 Factor

 N/A 105

G2 Factor

 N/A 29.3
Geometry Factor (Cg)6 N/A 0.125
  • 1 These maximum fillet radii will be cleared by the bearing corners.
  • 2 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 3 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 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 Geometry constant for Lubrication Life Adjustment Factor a3l.