Menu
Find Your Nearest Timken Sales Office or Authorized Distributor

Our locator tool helps you connect with the right Timken partner quickly. Registered users
can save their nearest Timken Sales office or distributor in their dashboard.

Try the Locator Tool
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
Explore Timken Engineering Tools
Videos on YouTube

Check out our Engineering Tools video playlist on YouTube. These short walkthroughs
help you navigate Timken calculation tools, selection guides and digital resources.

View the Full Playlist
Batch CAD Cart (0) ▾
  • Cart is empty
  1. Click Here for Batch Download
Request Information Add to CAD Cart
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 755

Cone Part Number

 N/A 767D

Design Units

 N/A Imperial

Cage Type

 N/A Stamped Steel
C1 - Dynamic Radial Rating (1 million revolutions)1 N/A 73600 lbf327000 N

C0 - Static Radial Rating

 N/A 99200 lbf441000 N

Dimensions

d - Cone Bore

 N/A 3 1/2 in88.900 mm

B - Double Cone Width

 N/A 4.2500 in107.950 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius2 N/A 0.06 in1.5 mm

da - Cone Frontface Backing Diameter

 N/A 3.988 in101.3 mm

Ab - Cage-Cone Frontface Clearance

 N/A -0.03 in-0.8 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)3 N/A 19100 lbf84800 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 128000 lbf570000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 33200 lbf148000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 11100 lbf49500 N

Factors

K - Factor7 N/A 1.71

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 177

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 32.4
Cg - Geometry Factor8 N/A 0.0945
  • 1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 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 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.