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 HM959738DW

Bore (d)

 N/A 12.0092 in305.034 mm
Dynamic Radial Load Rating - 1M Revs (C1) 1 N/A 305000 lbf1360000 N
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 79200 lbf352000 N
Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row) 3 N/A 138000 lbf613000 N
K Factor 4 N/A 0.67

Other Dimensions

Weight

 N/A 141.800 Kg312.60 lb

Inner Ring Width (B)

 N/A 7.875 in200.025 mm
Max Shaft Fillet Radius5 N/A 0.13 in3.300 mm

Shaft Backing Shoulder Dia. - Frontface (da)

 N/A 13.78 in350 mm

Cage Location rel. to FF (Ab)

 N/A -0.08 in-2 mm

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)6 N/A 117000 lbf522000 N
Dynamic Radial Load Rating 2-Row - 1M Revs (C1)7 N/A 532000 lbf2370000 N

Static Radial Load Rating (C0)

 N/A 571000 lbf2540000 N

Factors

Geometry Factor (Cg)8 N/A 0.221
  • 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.