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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

Specifications

Series

 N/A M282200

Cone Part Number

 N/A M282249D

Design Units

 N/A Imperial

Cage Type

 N/A Pin-Type
C1 - Dynamic Radial Rating (1 million revolutions)1 N/A 1400000 lbf6240000 N

C0 - Static Radial Rating

 N/A 3340000 lbf14900000 N

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.

Dimensions

d - Cone Bore

 N/A 26.8750 in682.625 mm

B - Double Cone Width

 N/A 13.3125 in338.138 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius2 N/A 0.13 in3.300 mm

da - Cone Frontface Backing Diameter

 N/A 28.46 in723 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.51 in13 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)3 N/A 364000 lbf1620000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 2440000 lbf10900000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 634000 lbf2820000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 207000 lbf921000 N

Factors

K - Factor7 N/A 1.76

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 18800

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 843
Cg - Geometry Factor8 N/A 0.343
  • 1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 2 These maximum fillet radii will be cleared by the bearing corners.
  • 3 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 4 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 5 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.
  • 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 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 8 Geometry constant for Lubrication Life Adjustment Factor a3l.
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