Menu
Batch CAD Cart (0) ▾
  • Cart is empty
  1. Click Here for Batch Download
Request Information Add to CAD Cart
Tapered Roller Bearings - 2S (Matched Bearing Assembly, with snap ring spacer)
Unit of Measure

Specifications

Cone Part Number

 N/A 15578

Cup Part Number

 N/A 15520

Inner Spacer Part Number

 N/A X1S-15578

Outer Spacer Part Number

 N/A K158879R

Design Unit

 N/A Inch

Dimensions

d - Bore

 N/A 1 in25.400 mm

D - Cup Outer Diameter

 N/A 2.2500 in57.150 mm

T - Width

 N/A 1.5450 in39.243 mm

C - Width

 N/A 1.2326 in31.308 mm

Snap Ring Diameter

 N/A 2.35 in59.72 mm

Snap Ring Width

 N/A 0.17 in0.34 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.050 in1.300 mm
r - Cup Backface "To Clear" Radius2 N/A 0.06 in1.52 mm

db - Cone Backface Backing Diameter

 N/A 1.28 in32.5 mm

Da - Cup Frontface Backing Diameter

 N/A 2.11 in53.10 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)

 N/A 3180 lbf14100 N
C1 - Dynamic Radial Rating (1 million revolutions)3 N/A 21300 lbf94900 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)4 N/A 1880 lbf8380 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 5530 lbf24600 N

Factors

K - Factor6 N/A 1.69
e - ISO Factor7 N/A 0.35
Y1 - ISO Factor8 N/A 1.95
Y2 - ISO Factor9 N/A 2.9
  • 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 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 4 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.
  • 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 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 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.
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.