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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 H239600

Cone Part Number

 N/A H239649D

Design Units

 N/A Imperial

Cage Type

 N/A Stamped Steel
C1 - Dynamic Radial Rating (1 million revolutions)1 N/A 236000 lbf1050000 N

C0 - Static Radial Rating

 N/A 356000 lbf1580000 N

Dimensions

d - Cone Bore

 N/A 7.3750 in187.325 mm

B - Double Cone Width

 N/A 6.3750 in161.925 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius2 N/A 0.13 in3.300 mm

da - Cone Frontface Backing Diameter

 N/A 8.23 in209 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.14 in3.6 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)3 N/A 61100 lbf272000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 410000 lbf1830000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 106000 lbf473000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 33400 lbf148000 N

Factors

K - Factor7 N/A 1.83

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 906

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 90.3
Cg - Geometry Factor8 N/A 0.124
  • 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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