The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
Print Back
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

Other Dimensions

Weight

 N/A 0.953 Kg2.1 lb

C - Double Cup Width

 N/A 1.375 in34.925 mm
Max Housing Fillet Radius1 N/A 0.03 in0.8 mm

Housing Backing Shoulder Diameter - Frontface (Da)

 N/A 2.91 in73.9 mm

Key Dimensions

Series

 N/A 28000

Cup Part Number

 N/A 28318D

O.D. (D)

 N/A 3.151 in80.035 mm
K Factor 2 N/A 1.45
e Factor 3 N/A 0.4

Factors

Y1 Factor 4 N/A 1.68
Y2 Factor 5 N/A 2.5

G1 Factor

 N/A 20.7

G2 Factor

 N/A 12.5
Geometry Factor (Cg)6 N/A 0.0709
  • 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.