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 8 Kg17.7 lb

Inner Ring Width (B)

 N/A 3.75 in95.25 mm
Max Shaft Fillet Radius1 N/A 0.03 in0.8 mm

Shaft Backing Shoulder Diameter - Frontface (da)

 N/A 4.45 in113 mm

Cage Location Relative to Frontface (Ab) 

 N/A 0.12 in3 mm

Key Dimensions

Series

 N/A 675

Cone Part Number

 N/A 688TD

Bore (d)

 N/A 3.9453 in100.211 mm
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 14600 lbf64800 N
Dynamic Radial Load Rating - 1M Revs (C1) 3 N/A 56200 lbf250000 N
Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row) 4 N/A 25400 lbf113000 N
K Factor 5 N/A 1.24

Ratings

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)6 N/A 97800 lbf435000 N

Static Radial Load Rating (C0)

 N/A 86700 lbf386000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)7 N/A 11700 lbf52200 N

Factors

Geometry Factor (Cg)8 N/A 0.106
  • 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.