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 M249700

Cone Part Number

 N/A M249749

Cup Part Number

 N/A M249710CD

Design Unit

 N/A Inch

Cage Material

 N/A Stamped Steel

Related Assembly Number(s)

 N/A M249749-90116 M249749-90136 M249749-90138 M249749-90139 M249749-90140 M249749-90141 M249749-90145 M249749-90149 M249749-90150 M249749-90151 M249749-90152 M249749-90153 M249749-90154 M249749-90155 M249749-90157 M249749-90163 M249749-90165 M249749-902A8 M249749-902C6 M249749-902C8 M249749-902C9 M249749-902D1 M249749-902D2

Dimensions

d - Bore

 N/A 10 in254 mm

D - Cup Outer Diameter

 N/A 14.125 in358.775 mm

B - Cone Width

 N/A 2.8125 in71.438 mm

C - Double Cup Width

 N/A 4.6250 in117.475 mm

T - Bearing Width across Cones

 N/A 5.9999 in152.397 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.14 in3.600 mm
r - Cup Backface "To Clear" Radius2 N/A 0.06 in1.5 mm

db - Cone Backface Backing Diameter

 N/A 10.79 in274 mm

Da - Cup Frontface Backing Diameter

 N/A 13.52 in343.41 mm

Aa - Cage-Cone Backface Clearance

 N/A 0.28 in7.1 mm
a - Effective Center Location3 N/A -0.27 in-6.9 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 N/A 53300 lbf237000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 N/A 358000 lbf1590000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 N/A 92800 lbf413000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)7 N/A 30300 lbf135000 N

Factors

K - Factor8 N/A 1.76
e - ISO Factor9 N/A 0.33
Y1 - ISO Factor10 N/A 2.03
Y2 - ISO Factor11 N/A 3.02
Cg - Geometry Factor12 N/A 0.153
  • 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.