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 32238

Cone Part Number

 N/A X32238

Cup Part Number

 N/A Y32238

Design Unit

 N/A Metric

Cage Material

 N/A Stamped Steel

Related Assembly Number(s)

 N/A 32238-90KA2 32238-90KA5 32238-90WA2

Dimensions

d - Bore

 N/A 190 mm7.4803 in

D - Cup Outer Diameter

 N/A 340 mm13.3858 in

B - Cone Width

 N/A 92 mm3.622 in

C - Cup Width

 N/A 75 mm2.9528 in

T - Bearing Width

 N/A 97.000 mm3.8189 in

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 5 mm0.200 in
r - Cup Backface "To Clear" Radius2 N/A 4 mm0.16 in

da - Cone Frontface Backing Diameter

 N/A 219 mm8.62 in

db - Cone Backface Backing Diameter

 N/A 230 mm9.05 in

Da - Cup Frontface Backing Diameter

 N/A 323 mm12.72 in

Db - Cup Backface Backing Diameter

 N/A 305 mm12.01 in

Ab - Cage-Cone Frontface Clearance

 N/A 9.9 mm0.39 in

Aa - Cage-Cone Backface Clearance

 N/A 11.2 mm0.44 in
a - Effective Center Location3 N/A -15.7 mm-0.62 in

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4 N/A 442000 N99400 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5 N/A 1700000 N383000 lbf

C0 - Static Radial Rating

 N/A 2210000 N496000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 329000 N74000 lbf

Factors

K - Factor7 N/A 1.34
e - ISO Factor8 N/A 0.44
Y - ISO Factor9 N/A 1.38

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 1114.6

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 89.9
Cg - Geometry Factor10 N/A 0.148
  • 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 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 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 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.