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.
Unit of Measure

Key Dimensions

Cup Part Number

 N/A DX979640

O.D. (D)

 N/A 12.5000 in317.500 mm
e Factor 1 N/A 1.19
K Factor 2 N/A 1.12

Other Dimensions

Weight

 N/A 34.223 Kg75.45 lb

Outer Ring Width (C)

 N/A 4.3750 in111.125 mm
Max Housing Fillet Radius3 N/A 0.06 in1.5 mm

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 11.81 in299.97 mm

Factors

Y1 Factor 4 N/A 0.57 0.84
Y2 Factor 5 N/A 0.84
Geometry Factor (Cg)6 N/A 0.146
  • 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.