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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.
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Unit of Measure

Other Dimensions

Weight

 N/A 16.10 Kg35.6 lb

Inner Ring Width (B)

 N/A 3.4375 in87.313 mm
Max Shaft Fillet Radius1 N/A 0.03 in0.8 mm

Shaft Backing Shoulder Diameter - Frontface (da)

 N/A 8.62 in219 mm

Cage Location Relative to Frontface (Ab) 

 N/A 0.11 in2.8 mm

Key Dimensions

Series

 N/A 67900

Cone Part Number

 N/A 67985D

Bore (d)

 N/A 8.125 in206.375 mm
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 24700 lbf110000 N
Dynamic Radial Load Rating - 1M Revs (C1) 3 N/A 95300 lbf424000 N
Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row) 4 N/A 43000 lbf191000 N
K Factor 5 N/A 1.15

Ratings

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)6 N/A 166000 lbf738000 N

Static Radial Load Rating (C0)

 N/A 197000 lbf876000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)7 N/A 21500 lbf95800 N

Factors

G1 Factor

 N/A 820

G2 Factor

 N/A 172
Geometry Factor (Cg)8 N/A 0.139
  • 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.