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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 HM262700

Cone Part Number

 N/A HM262749DG

Design Units

 N/A Imperial

Cage Type

 N/A Pin-Type
C1 - Dynamic Radial Rating (1 million revolutions)1 N/A 388000 lbf1730000 N

C0 - Static Radial Rating

 N/A 845000 lbf3760000 N

Note

 N/A This part has a non-standard shoulder design. Please email customer CAD for shoulder details to ensure the proper design of mating components.

Dimensions

d - Cone Bore

 N/A 13.6250 in346.075 mm

B - Double Cone Width

 N/A 6.8750 in174.625 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 14.49 in368 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.2 in5.1 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)3 N/A 101000 lbf448000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 676000 lbf3010000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 175000 lbf780000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 57700 lbf257000 N

Factors

K - Factor7 N/A 1.74
Cg - Geometry Factor8 N/A 0.2
  • 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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