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The configuration of the TDO provides a wide effective bearing spread, making it ideal for applications in which overturning moments are a significant load component. TDO bearings can be used in fixed positions or allowed to float in the housing bore.
Unit of Measure

Specifications

Series

 7000

Cone Part Number

 07100-S

Cup Part Number

 07196D

Design Unit

 Inch

Cage Material

 Stamped Steel

Dimensions

d - Bore

 1 in25.400 mm

D - Cup Outer Diameter

 1.9687 in50.005 mm

B - Cone Width

 0.5614 in14.260 mm

C - Double Cup Width

 1.0000 in25.400 mm

T - Bearing Width across Cones

 1.3126 in33.340 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 0.06 in1.5 mm
r - Cup Backface "To Clear" Radius2 0.030 in0.6 mm

db - Cone Backface Backing Diameter

 1.24 in31.5 mm

Da - Cup Frontface Backing Diameter

 1.85 in46.99 mm

Aa - Cage-Cone Backface Clearance

 0 in0 mm
a - Effective Center Location3 -0.11 in-2.8 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 1700 lbf7550 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 11400 lbf50700 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 2950 lbf13100 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)7 1170 lbf5190 N

Factors

K - Factor8 1.45
e - ISO Factor9 0.4
Y1 - ISO Factor10 1.68
Y2 - ISO Factor11 2.5
Cg - Geometry Factor12 0.0509
  • 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 Negative value indicates effective center inside cone backface.
  • 4 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 5 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 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 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.
  • 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 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 12 Geometry constant for Lubrication Life Adjustment Factor a3l.