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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 H242600

Cone Part Number

 N/A H242649D

Design Units

 N/A Imperial

Cage Type

 N/A Stamped Steel
C1 - Dynamic Radial Rating (1 million revolutions)1 N/A 305000 lbf1350000 N

C0 - Static Radial Rating

 N/A 522000 lbf2320000 N

Dimensions

d - Cone Bore

 N/A 8.1250 in206.375 mm

B - Double Cone Width

 N/A 7.2500 in184.150 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 9.09 in231 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.12 in3 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)3 N/A 79000 lbf351000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 530000 lbf2360000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 137000 lbf612000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 45000 lbf200000 N

Factors

K - Factor7 N/A 1.76

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 1400

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 135
Cg - Geometry Factor8 N/A 0.147
  • 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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