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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 93000

Cone Part Number

 N/A 93801D

Cup Part Number

 N/A 93126

Design Unit

 N/A Inch

Cage Material

 N/A Stamped Steel

Dimensions

d - Bore

 N/A 8 in203.2 mm

D - Cup Outer Diameter

 N/A 12.5000 in317.500 mm

B - Double Cone Width

 N/A 5.2500 in133.350 mm

C - Cup Width

 N/A 2.0000 in50.800 mm

T - Bearing Width across Cups

 N/A 5.6249 in142.872 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.25 in6.4 mm
r - Cup Backface "To Clear" Radius2 N/A 0.130 in3.30 mm

da - Cone Frontface Backing Diameter

 N/A 8.93 in226.94 mm

Db - Cup Backface Backing Diameter

 N/A 11.22 in284.99 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.21 in5.3 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 N/A 42600 lbf190000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 286000 lbf1270000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 74200 lbf330000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 38200 lbf170000 N

Factors

K - Factor7 N/A 1.12
e - ISO Factor8 N/A 0.52
Y1 - ISO Factor9 N/A 1.29
Y2 - ISO Factor10 N/A 1.92

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 912

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 126
Cg - Geometry Factor11 N/A 0.146

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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