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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 LM124400

Cone Part Number

 N/A LM124449DW

Cup Part Number

 N/A LM124410

Design Unit

 N/A Inch

Cage Material

 N/A Stamped Steel

Note

 N/A This part has a non-standard shoulder design. Please email customer CAD for shoulder details to ensure the proper design of mating components.

Related Assembly Number(s)

 N/A LM124449DW-902B1

Dimensions

d - Bore

 N/A 4.7500 in

D - Cup Outer Diameter

 N/A 6.5625 in

B - Double Cone Width

 N/A 2.8440 in

C - Cup Width

 N/A 1.2500 in

T - Bearing Width across Cups

 N/A 2.8439 in

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.03 in
r - Cup Backface "To Clear" Radius2 N/A 0.130 in

da - Cone Frontface Backing Diameter

 N/A 5.04 in

Db - Cup Backface Backing Diameter

 N/A 6.06 in

Ab - Cage-Cone Frontface Clearance

 N/A 0.03 in

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 N/A 12200 lbf54200 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 81800 lbf364000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 21200 lbf94300 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 6130 lbf27300 N

Factors

K - Factor7 N/A 1.99
e - ISO Factor8 N/A 0.29
Y1 - ISO Factor9 N/A 2.3
Y2 - ISO Factor10 N/A 3.42
Cg - Geometry Factor11 N/A 0.151

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.