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.
Unit of Measure
Key Dimensions
Cone Part Number |
N/A M757447D |
Bore (d) |
N/A 11.994 in304.648 mm |
| Dynamic Radial Load Rating - 1M Revs (C1) 1 | N/A 247000 lbf1100000 N |
| Dynamic Radial Load Rating - 90M Revs (C90) 2 | N/A 64000 lbf285000 N |
| Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row) 3 | N/A 111000 lbf496000 N |
| K Factor 4 | N/A 1.24 |
Other Dimensions
Weight |
N/A 61.8 Kg136.3 lb |
Inner Ring Width (B) |
N/A 5.0625 in128.588 mm |
| Max Shaft Fillet Radius5 | N/A 0.13 in3.300 mm |
Shaft Backing Shoulder Dia. - Frontface (da) |
N/A 12.91 in328 mm |
Cage Location rel. to FF (Ab) |
N/A 0.21 in5.3 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.