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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 138000

Cone Part Number

 N/A EE138131D

Cup Part Number

 N/A 138172

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 EE138131D-90016 EE138131D-90017 EE138131D-90018

Dimensions

d - Bore

 N/A 13.0040 in330.302 mm

D - Cup Outer Diameter

 N/A 17.2450 in438.023 mm

B - Double Cone Width

 N/A 4.5000 in114.300 mm

C - Cup Width

 N/A 1.8750 in47.625 mm

T - Bearing Width across Cups

 N/A 4.7500 in120.650 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 0.130 in3.30 mm

da - Cone Frontface Backing Diameter

 N/A 13.66 in347 mm

Db - Cup Backface Backing Diameter

 N/A 16.22 in412.00 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.07 in1.8 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 N/A 42800 lbf190000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 287000 lbf1280000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 74500 lbf331000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 33600 lbf149000 N

Factors

K - Factor7 N/A 1.27
e - ISO Factor8 N/A 0.46
Y1 - ISO Factor9 N/A 1.47
Y2 - ISO Factor10 N/A 2.19

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 1970

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 290
Cg - Geometry Factor11 N/A 0.179

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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