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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

Cup Part Number

 N/A 234215W

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.

Dimensions

d - Bore

 N/A 15.5 in393.7 mm

D - Cup Outer Diameter

 N/A 21.5000 in546.1 mm

B - Double Cone Width

 N/A 4.7500 in120.650 mm

C - Cup Width

 N/A 2.1875 in55.563 mm

T - Bearing Width across Cups

 N/A 5.5624 in141.285 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.13 in3.300 mm
r - Cup Backface "To Clear" Radius2 N/A 0.250 in6.35 mm

da - Cone Frontface Backing Diameter

 N/A 16.54 in420 mm

Db - Cup Backface Backing Diameter

 N/A 19.84 in503.94 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.12 in3 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 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
e - ISO Factor8 N/A 0.48
Y1 - ISO Factor9 N/A 1.42
Y2 - ISO Factor10 N/A 2.11

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 2780

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 448
Cg - Geometry Factor11 N/A 0.202

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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