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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 HM262749D

Cup Part Number

 N/A HM262710

Design Unit

 N/A Inch

Cage Material

 N/A Pin-Type

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.

Related Assembly Number(s)

 N/A HM262749D-90036 HM262749D-90040 HM262749D-90042 HM262749D-90044 HM262749D-90052 HM262749D-90054 HM262749D-90066 HM262749D-90080 HM262749D-90082 HM262749D-902A6 HM262749D-902B3 HM262749D-902B5 HM262749D-902C3 HM262749D-902C8 HM262749D-902C9 HM262749D-902D1

Dimensions

d - Bore

 N/A 13.6250 in346.075 mm

D - Cup Outer Diameter

 N/A 19.2500 in488.950 mm

B - Double Cone Width

 N/A 6.8750 in174.625 mm

C - Cup Width

 N/A 2.9375 in74.613 mm

T - Bearing Width across Cups

 N/A 6.8750 in174.625 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.13 in3.300 mm
r - Cup Backface "To Clear" Radius2 N/A 0.130 in3.30 mm

da - Cone Frontface Backing Diameter

 N/A 14.61 in371 mm

Db - Cup Backface Backing Diameter

 N/A 17.95 in455.93 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.2 in5.1 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 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
e - ISO Factor8 N/A 0.33
Y1 - ISO Factor9 N/A 2.02
Y2 - ISO Factor10 N/A 3
Cg - Geometry Factor11 N/A 0.2

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.
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