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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 575

Cone Part Number

 N/A 581D

Cup Part Number

 N/A 572A

Design Unit

 N/A Inch

Cage Material

 N/A Stamped Steel

Dimensions

d - Bore

 N/A 3 3/16 in80.963 mm

D - Cup Outer Diameter

 N/A 5.5111 in139.982 mm

B - Double Cone Width

 N/A 3.1549 in80.134 mm

C - Cup Width

 N/A 1.1250 in28.575 mm

T - Bearing Width across Cups

 N/A 3.0881 in78.438 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 3.62 in92 mm

Db - Cup Backface Backing Diameter

 N/A 4.88 in123.95 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.1 in2.5 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 N/A 12100 lbf53600 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 80900 lbf360000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 21000 lbf93400 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 8330 lbf37100 N

Factors

K - Factor7 N/A 1.45
e - ISO Factor8 N/A 0.4
Y1 - ISO Factor9 N/A 1.67
Y2 - ISO Factor10 N/A 2.49
Cg - Geometry Factor11 N/A 0.13

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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