Menu
Batch CAD Cart (0) ▾
  • Cart is empty
  1. Click Here for Batch Download
Request Information Add to CAD Cart
This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft.
Unit of Measure

Specifications

Series

 N/A M205100

Cup Part Number

 N/A JM205110A

Design Units

 N/A METRIC

Full Timken Part Number

 N/A M205100

Dimensions

D - Cup Outer Diameter

 N/A 90 mm3.5433 in

C - Cup Width

 N/A 23 mm0.9055 in

Abutment and Fillet Dimensions

r - Cup Backface "To Clear" Radius1 N/A 0.76 mm0.030 in

Da - Cup Frontface Backing Diameter

 N/A 85.10 mm3.39 in

Db - Cup Backface Backing Diameter

 N/A 81.03 mm3.19 in

Factors

K - Factor2 N/A 1.78
e - ISO Factor3 N/A 0.33
Y - ISO Factor4 N/A 1.82

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 48.2

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 14.1
Cg - Geometry Factor5 N/A 0.0885
  • 1 These maximum fillet radii will be cleared by the bearing corners.
  • 2 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 3 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 4 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 5 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.