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

Design Units

 N/A Imperial
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 N/A 19800 lbf88000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 N/A 5130 lbf22800 N

Dimensions

d - Cone Bore

 N/A 1.1813 in30.005 mm

B - Cone Width

 N/A 1.0000 in25.400 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius3 N/A 0.03 in0.800 mm

db - Cone Backface Backing Diameter

 N/A 1.40 in35.5 mm

Ab - Cage-Cone Frontface Clearance

 N/A -0.05 in-1.27 mm

Aa - Cage-Cone Backface Clearance

 N/A 0.1 in2.54 mm
a - Effective Center Location4 N/A -0.303 in-7.7 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)5 N/A 2940 lbf13100 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 1770 lbf7860 N

Factors

K - Factor7 N/A 1.67
  • 1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 2 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.
  • 3 These maximum fillet radii will be cleared by the bearing corners.
  • 4 Negative value indicates effective center inside cone backface.
  • 5 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 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.
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.