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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 HH255100

Cone Part Number

 N/A HH255149D

Cup Part Number

 N/A HH255110

Design Unit

 N/A Inch

Cage Material

 N/A Pin-Type

Related Assembly Number(s)

 N/A HH255149D-90015 HH255149D-90016 HH255149D-90017 HH255149D-90018 HH255149D-902A1 HH255149D-902A2 HH255149D-902A3 HH255149D-902A4 HH255149D-902A6

Dimensions

d - Bore

 N/A 11 in279.4 mm

D - Cup Outer Diameter

 N/A 18 in457.2 mm

B - Double Cone Width

 N/A 9.6250 in244.475 mm

C - Cup Width

 N/A 4.1875 in106.363 mm

T - Bearing Width across Cups

 N/A 9.6250 in244.475 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.06 in1.5 mm
r - Cup Backface "To Clear" Radius2 N/A 0.250 in6.4 mm

da - Cone Frontface Backing Diameter

 N/A 12.17 in309 mm

Db - Cup Backface Backing Diameter

 N/A 16.22 in412.00 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.29 in7.4 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 N/A 153000 lbf679000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 1020000 lbf4560000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 266000 lbf1180000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 86800 lbf386000 N

Factors

K - Factor7 N/A 1.76
e - ISO Factor8 N/A 0.33
Y1 - ISO Factor9 N/A 2.03
Y2 - ISO Factor10 N/A 3.02
Cg - Geometry Factor11 N/A 0.192

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.