Menu
Discover the New “My Dashboard” Experience

Join Eric Stasiowski, manager – online marketing & ecommerce, to see how you can save key items like documents, bearings, and distributor locations directly to your account.

View Video
Analyze Bearing Performance in an Application with Timken ® Syber ® Bearing System Designer

A powerful software tool that combines calculators and configurators to assist you with application design, bearing selection, installation, and troubleshooting. It’s free, easy-to-use, and accessible 24/7.

Learn More
Simplified Gear Force Analysis

Alex Waye, Timken Application Engineer, shows you how to instantly compute tangential, radial, and axial forces for better design decisions.

View Video
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 L327200

Cone Part Number

 N/A L327249

Cup Part Number

 N/A L327210DC

Design Unit

 N/A Inch

Cage Material

 N/A Stamped Steel

Related Assembly Number(s)

 N/A L327249-90029

Dimensions

d - Bore

 N/A 5 1/4 in133.350 mm

D - Cup Outer Diameter

 N/A 6.9688 in177.008 mm

B - Cone Width

 N/A 1.0313 in26.195 mm

C - Double Cup Width

 N/A 1.8750 in47.625 mm

T - Bearing Width across Cones

 N/A 2.2499 in57.147 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 0.030 in0.8 mm

db - Cone Backface Backing Diameter

 N/A 5.59 in142 mm

Da - Cup Frontface Backing Diameter

 N/A 6.77 in170.94 mm

Aa - Cage-Cone Backface Clearance

 N/A 0.02 in0.5 mm
a - Effective Center Location3 N/A 0.16 in4.1 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)4 N/A 8570 lbf38100 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 N/A 57600 lbf256000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 N/A 14900 lbf66400 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)7 N/A 5110 lbf22700 N

Factors

K - Factor8 N/A 1.68
e - ISO Factor9 N/A 0.35
Y1 - ISO Factor10 N/A 1.94
Y2 - ISO Factor11 N/A 2.89
Cg - Geometry Factor12 N/A 0.158
  • 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.