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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 355

Cone Part Number

 N/A 357DW

Cup Part Number

 N/A 354X

Design Unit

 N/A Inch

Cage Material

 N/A Stamped Steel

Dimensions

d - Bore

 N/A 1 11/16 in42.863 mm

D - Cup Outer Diameter

 N/A 3.3465 in85.001 mm

B - Double Cone Width

 N/A 2.5620 in65.075 mm

C - Cup Width

 N/A 0.6875 in17.463 mm

T - Bearing Width across Cups

 N/A 1.9788 in50.262 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.03 in0.800 mm
r - Cup Backface "To Clear" Radius2 N/A 0.06 in1.52 mm

da - Cone Frontface Backing Diameter

 N/A 1.95 in49.5 mm

Db - Cup Backface Backing Diameter

 N/A 3.03 in76.96 mm

Ab - Cage-Cone Frontface Clearance

 N/A -0.16 in-4.1 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 N/A 4770 lbf21200 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 32000 lbf142000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 8310 lbf36900 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 2500 lbf11100 N

Factors

K - Factor7 N/A 1.91
e - ISO Factor8 N/A 0.31
Y1 - ISO Factor9 N/A 2.2
Y2 - ISO Factor10 N/A 3.28
Cg - Geometry Factor11 N/A 0.0732

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.