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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 26000 |
Cone Part Number |
N/A 26126X |
Cup Part Number |
N/A 26282D |
Design Unit |
N/A Inch |
Cage Material |
N/A Stamped Steel |
Dimensions
d - Bore |
N/A 1.2598 in31.999 mm |
D - Cup Outer Diameter |
N/A 2.8125 in71.438 mm |
B - Cone Width |
N/A 0.7450 in18.923 mm |
C - Double Cup Width |
N/A 1.4375 in36.513 mm |
T - Bearing Width across Cones |
N/A 1.6875 in42.863 mm |
Abutment and Fillet Dimensions
| R - Cone Backface "To Clear" Radius1 | N/A 0.08 in2 mm |
| r - Cup Backface "To Clear" Radius2 | N/A 0.020 in0.40 mm |
db - Cone Backface Backing Diameter |
N/A 1.59 in40.5 mm |
Da - Cup Frontface Backing Diameter |
N/A 2.60 in65.02 mm |
Aa - Cage-Cone Backface Clearance |
N/A 0 in0 mm |
| a - Effective Center Location3 | N/A -0.16 in-4.1 mm |
Basic Load Ratings
| C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 | N/A 3420 lbf15200 N |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 | N/A 23000 lbf102000 N |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 | N/A 5960 lbf26500 N |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)7 | N/A 2110 lbf9390 N |
- 1 These maximum fillet radii will be cleared by the bearing corners.
- 2 These maximum fillet radii will be cleared by the bearing corners.
- 3 Negative value indicates effective center inside cone backface.
- 4 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
- 5 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
- 6 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.
- 7 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.
- 8 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
- 9 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
- 10 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
- 11 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
- 12 Geometry constant for Lubrication Life Adjustment Factor a3l.
