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 14.70 Kg32.5 lb

Inner Ring Width (B)

 N/A 3.375 in85.725 mm
Max Shaft Fillet Radius1 N/A 0.09 in2.3 mm

Shaft Backing Shoulder Diameter - Frontface (da)

 N/A 9.03 in229.36 mm

Cage Location Relative to Frontface (Ab) 

 N/A 0.12 in3 mm

Key Dimensions

Series

 N/A LM742700

Cone Part Number

 N/A LM742749DW

Bore (d)

 N/A 8.5 in215.9 mm
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 25000 lbf111000 N
Dynamic Radial Load Rating - 1M Revs (C1) 3 N/A 96600 lbf430000 N
Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row) 4 N/A 43600 lbf194000 N
K Factor 5 N/A 1.21

Ratings

C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)6 N/A 168000 lbf748000 N

Static Radial Load Rating (C0)

 N/A 200000 lbf892000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)7 N/A 20600 lbf91800 N

Factors

G1 Factor

 N/A 867
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.