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 LM247748DW

Bore (d)

 N/A 9.6250 in244.475 mm
Dynamic Radial Load Rating - 1M Revs (C1) 1 N/A 127000 lbf567000 N
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 33000 lbf147000 N
Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row) 3 N/A 57500 lbf256000 N
K Factor 4 N/A 1.82

Other Dimensions

Weight

 N/A 20.9 Kg46.1 lb

Inner Ring Width (B)

 N/A 3.6250 in92.075 mm
Max Shaft Fillet Radius5 N/A 0.06 in1.5 mm

Shaft Backing Shoulder Dia. - Frontface (da)

 N/A 10.12 in257 mm

Cage Location rel. to FF (Ab)

 N/A 0.16 in4.1 mm

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)6 N/A 18200 lbf80800 N
Dynamic Radial Load Rating 2-Row - 1M Revs (C1)7 N/A 222000 lbf987000 N

Static Radial Load Rating (C0)

 N/A 257000 lbf1140000 N

Factors

Geometry Factor (Cg)8 N/A 0.135
  • 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.