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 M282249D

Bore (d)

 N/A 26.8750 in682.625 mm
Dynamic Radial Load Rating - 1M Revs (C1) 1 N/A 1400000 lbf6240000 N
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 364000 lbf1620000 N
Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row) 3 N/A 634000 lbf2820000 N
K Factor 4 N/A 1.76

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.

Other Dimensions

Weight

 N/A 807.7 Kg1780.6 lb

Inner Ring Width (B)

 N/A 13.3125 in338.138 mm
Max Shaft Fillet Radius5 N/A 0.13 in3.300 mm

Shaft Backing Shoulder Dia. - Frontface (da)

 N/A 28.46 in723 mm

Cage Location rel. to FF (Ab)

 N/A 0.51 in13 mm

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)6 N/A 207000 lbf921000 N
Dynamic Radial Load Rating 2-Row - 1M Revs (C1)7 N/A 2440000 lbf10900000 N

Static Radial Load Rating (C0)

 N/A 3340000 lbf14900000 N

Factors

G1 Factor

 N/A 18800

G2 Factor

 N/A 843
Geometry Factor (Cg)8 N/A 0.343
  • 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.