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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.
Unit of Measure

Specifications

Series

 N/A HM120800

Cup Part Number

 N/A HM120817XD

Design Units

 N/A Imperial

Note

 N/A This part has a non-standard shoulder design. Please email customer CAD for shoulder details to ensure the proper design of mating components.

Dimensions

D - Cup Outer Diameter

 N/A 6 1/2 in165.1 mm

C - Double Cup Width

 N/A 4.5 in114.3 mm

Abutment and Fillet Dimensions

r - Cup Backface "To Clear" Radius1 N/A 0.04 in1.0 mm

Da - Cup Frontface Backing Diameter

 N/A 6.10 in154.90 mm

Factors

K - Factor2 N/A 2.21
e - ISO Factor3 N/A 0.26
Y1 - ISO Factor4 N/A 2.55
Y2 - ISO Factor5 N/A 3.8
Cg - Geometry Factor6 N/A 0.0941
  • 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.