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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 234000

Cone Part Number

 N/A EE234157D

Design Units

 N/A Imperial

Cage Type

 N/A Stamped Steel
C1 - Dynamic Radial Rating (1 million revolutions)1 N/A 244000 lbf1090000 N

C0 - Static Radial Rating

 N/A 451000 lbf2010000 N

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.

Dimensions

d - Cone Bore

 N/A 15.5 in393.7 mm

B - Double Cone Width

 N/A 4.7500 in120.650 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius2 N/A 0.13 in3.300 mm

da - Cone Frontface Backing Diameter

 N/A 16.54 in420 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.12 in3 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)3 N/A 63300 lbf282000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 425000 lbf1890000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 110000 lbf490000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 51600 lbf230000 N

Factors

K - Factor7 N/A 1.23

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 2780

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 448
Cg - Geometry Factor8 N/A 0.202
  • 1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 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 Geometry constant for Lubrication Life Adjustment Factor a3l.
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