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

Key Dimensions

Cup Part Number

 N/A 98789D

O.D. (D)

 N/A 7.875 in200.025 mm
e Factor 1 N/A 0.63
K Factor 2 N/A 0.92

Other Dimensions

Weight

 N/A 15.664 Kg34.53 lb

Outer Ring Width (C)

 N/A 3.1581 in80.216 mm
Max Housing Fillet Radius3 N/A 0.090 in2.3 mm

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 7.41 in188.21 mm

Factors

Y1 Factor 4 N/A 1.07
Y2 Factor 5 N/A 1.59

G1 Factor

 N/A 203

G2 Factor

 N/A 37.4
Geometry Factor (Cg)6 N/A 0.12
  • 1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 2 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 3 These maximum fillet radii will be cleared by the bearing corners.
  • 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.