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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

Specifications

Series

 N/A L540000

Cone Part Number

 N/A L540049D

Cup Part Number

 N/A L540010

Design Unit

 N/A Inch

Cage Material

 N/A Stamped Steel

Dimensions

d - Bore

 N/A 7.7500 in196.850 mm

D - Cup Outer Diameter

 N/A 10.00 in254.000 mm

B - Double Cone Width

 N/A 2.0626 in52.390 mm

C - Cup Width

 N/A 0.8438 in21.433 mm

T - Bearing Width across Cups

 N/A 2.1249 in53.972 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.06 in1.5 mm
r - Cup Backface "To Clear" Radius2 N/A 0.06 in1.52 mm

da - Cone Frontface Backing Diameter

 N/A 8.15 in207 mm

Db - Cup Backface Backing Diameter

 N/A 9.57 in243.08 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.1 in2.5 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 N/A 12300 lbf54700 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 82500 lbf367000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 21400 lbf95200 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 8350 lbf37100 N

Factors

K - Factor7 N/A 1.47
e - ISO Factor8 N/A 0.4
Y1 - ISO Factor9 N/A 1.7
Y2 - ISO Factor10 N/A 2.53
Cg - Geometry Factor11 N/A 0.137

Spacer

Note

 N/A Spacer shows standard nominal .01 radii, actual bearing may vary
  • 1 These maximum fillet radii will be cleared by the bearing corners.
  • 2 These maximum fillet radii will be cleared by the bearing corners.
  • 3 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 4 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 5 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.
  • 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 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 8 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 9 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 10 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 11 Geometry constant for Lubrication Life Adjustment Factor a3l.
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