TDI bearings have a one-piece double inner race and two single outer races and are typically supplied complete with an outer race spacer as a pre-set assembly. The bearing can be used at fixed positions on rotation shaft applications. For rotating housing application it can be used to float on the stationary shaft.
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Unit of Measure
Key Dimensions
Cone Part Number |
N/A 946D |
Bore (d) |
N/A 4.25 in107.95 mm |
| Dynamic Radial Load Rating - 1M Revs (C1) 1 | N/A 129000 lbf572000 N |
| Dynamic Radial Load Rating - 90M Revs (C90) 2 | N/A 33300 lbf148000 N |
| Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row) 3 | N/A 58000 lbf258000 N |
| K Factor 4 | N/A 1.79 |
Other Dimensions
Weight |
N/A 21.2 Kg46.7 lb |
Inner Ring Width (B) |
N/A 6.0000 in152.400 mm |
| Max Shaft Fillet Radius5 | N/A 0.13 in3.300 mm |
Shaft Backing Shoulder Dia. - Frontface (da) |
N/A 5.04 in128 mm |
Cage Location rel. to FF (Ab) |
N/A -0.1 in-2.5 mm |
- 1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
- 2 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
- 3 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.
- 4 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
- 5 These maximum fillet radii will be cleared by the bearing corners.
- 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 1 x 106 revolutions L10 life, for the ISO life calculation method.
- 8 Geometry constant for Lubrication Life Adjustment Factor a3l.