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 1300

Cone Part Number

 N/A 1351

Design Units

 N/A Imperial

Cage Type

 N/A Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1 N/A 18700 lbf83300 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2 N/A 4860 lbf21600 N

Dimensions

d - Cone Bore

 N/A 3/4 in19.05 mm

B - Cone Width

 N/A 0.9440 in23.978 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius3 N/A 0.11 in2.8 mm

da - Cone Frontface Backing Diameter

 N/A 0.98 in25 mm

db - Cone Backface Backing Diameter

 N/A 1.16 in29.5 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.07 in1.8 mm

Aa - Cage-Cone Backface Clearance

 N/A 0.18 in4.6 mm
a - Effective Center Location4 N/A -0.45 in-11.4 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)5 N/A 2790 lbf12400 N
C1 - Dynamic Radial Rating (1 million revolutions)6 N/A 10800 lbf47900 N

C0 - Static Radial Rating

 N/A 10900 lbf48300 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)7 N/A 1390 lbf6200 N

Factors

K - Factor8 N/A 2
Cg - Geometry Factor9 N/A 0.0508
  • 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 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 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 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.