The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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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

Other Dimensions

Weight

 N/A 18.6 Kg40.900 lb

Inner Ring Width (B)

 N/A 4 in101.6 mm
Max Shaft Fillet Radius1 N/A 0.06 in1.5 mm

Shaft Backing Shoulder Diameter - Frontface (da)

 N/A 7.87 in200 mm

Cage Location Relative to Frontface (Ab) 

 N/A 0.12 in3 mm

Key Dimensions

Series

 N/A M238800

Cone Part Number

 N/A M238849DW

Bore (d)

 N/A 7.375 in187.325 mm
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 32000 lbf142000 N
Dynamic Radial Load Rating - 1M Revs (C1) 3 N/A 123000 lbf548000 N
Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row) 4 N/A 55600 lbf247000 N
K Factor 5 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.

Ratings

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)6 N/A 215000 lbf955000 N

Static Radial Load Rating (C0)

 N/A 225000 lbf999000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)7 N/A 18200 lbf80900 N

Factors

Geometry Factor (Cg)8 N/A 0.12
  • 1 These maximum fillet radii will be cleared by the bearing corners.
  • 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 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 4 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.
  • 5 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 6 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 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 Geometry constant for Lubrication Life Adjustment Factor a3l.