Menu
Batch CAD Cart (0) ▾
  • Cart is empty
  1. Click Here for Batch Download
Request Information Add to CAD Cart
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

 N/A 670000

Cone Part Number

 N/A EE671801

Cup Part Number

 N/A 672875D

Design Unit

 N/A Inch

Cage Material

 N/A Pin-Type

Related Assembly Number(s)

 N/A EE671801-90023 EE671801-902A1 EE671801-902A3

Dimensions

d - Bore

 N/A 18.0000 in457.200 mm

D - Cup Outer Diameter

 N/A 28.7460 in730.148 mm

B - Cone Width

 N/A 4.5000 in114.300 mm

C - Double Cup Width

 N/A 7.0000 in177.800 mm

T - Bearing Width across Cones

 N/A 9.9999 in253.997 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.380 in9.700 mm
r - Cup Backface "To Clear" Radius2 N/A 0.06 in1.5 mm

db - Cone Backface Backing Diameter

 N/A 19.96 in507 mm

Da - Cup Frontface Backing Diameter

 N/A 26.93 in684.00 mm

Aa - Cage-Cone Backface Clearance

 N/A 0.71 in18 mm
a - Effective Center Location3 N/A 0.21 in5.3 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 N/A 165000 lbf733000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 N/A 1110000 lbf4920000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 N/A 287000 lbf1280000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)7 N/A 111000 lbf492000 N

Factors

K - Factor8 N/A 1.49
e - ISO Factor9 N/A 0.39
Y1 - ISO Factor10 N/A 1.72
Y2 - ISO Factor11 N/A 2.56
Cg - Geometry Factor12 N/A 0.231
  • 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.
By clicking Submit, you consent to the personal information you provide being used in the manner as described in our Privacy Notice, including access to that information by Timken personnel who may be located outside your home country. In addition, you agree that the CAD drawings are for your personal, one-time use only, and that you will not modify or create any compilation or derivative work using the CAD drawings or distribute or display the CAD drawings on any website or other media.