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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 526000

Cone Part Number

 N/A EE526131D

Cup Part Number

 N/A 526190

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 13.0000 in330.200 mm

D - Cup Outer Diameter

 N/A 19.0000 in482.600 mm

B - Double Cone Width

 N/A 5.8125 in147.638 mm

C - Cup Width

 N/A 2.3750 in60.325 mm

T - Bearing Width across Cups

 N/A 6.0000 in152.400 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 13.82 in351 mm

Db - Cup Backface Backing Diameter

 N/A 17.68 in449.07 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.06 in1.5 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 N/A 72900 lbf324000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 489000 lbf2180000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 127000 lbf564000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 48700 lbf217000 N

Factors

K - Factor7 N/A 1.49
e - ISO Factor8 N/A 0.39
Y1 - ISO Factor9 N/A 1.73
Y2 - ISO Factor10 N/A 2.57
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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