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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 H432500

Cone Part Number

 N/A H432549D

Design Units

 N/A Imperial

Cage Type

 N/A Stamped Steel
C1 - Dynamic Radial Rating (1 million revolutions)1 N/A 142000 lbf632000 N

C0 - Static Radial Rating

 N/A 257000 lbf1140000 N

Dimensions

d - Cone Bore

 N/A 6.1250 in155.575 mm

B - Double Cone Width

 N/A 4.8125 in122.238 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius2 N/A 0.06 in1.5 mm

da - Cone Frontface Backing Diameter

 N/A 6.77 in172 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.13 in3.3 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)3 N/A 36900 lbf164000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 248000 lbf1100000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 64200 lbf286000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 23300 lbf103000 N

Factors

K - Factor7 N/A 1.59

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 658

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 97.7
Cg - Geometry Factor8 N/A 0.118
  • 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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