Menu
Batch CAD Cart (0) ▾
  • Cart is empty
  1. Click Here for Batch Download
Request Information Add to CAD Cart
Unit of Measure

Specifications

Cone Part Number

 N/A LM446349NW

Cup Part Number

 N/A LM446310D

Design Unit

 N/A Inch

Dimensions

d - Bore

 N/A 9.25 in234.95 mm

D - Cup Outer Diameter

 N/A 12.25 in311.15 mm

T - Bearing Width across Cones

 N/A 4 in101.6 mm

C - Double Cup Width

 N/A 2.875 in73.025 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.14 in3.5 mm
r - Cup Backface "To Clear" Radius2 N/A 0.030 in0.8 mm

db - Cone Backface Backing Diameter

 N/A 9.92 in252.0 mm

Da - Cup Frontface Backing Diameter

 N/A 11.97 in304.00 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)3 N/A 25700 lbf114000 N
C1 - Dynamic Radial Rating (1 million revolutions)4 N/A 173000 lbf768000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)5 N/A 15900 lbf70900 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)6 N/A 44800 lbf199000 N

Factors

K - Factor7 N/A 1.61
e - ISO Factor8 N/A 0.36
Y1 - ISO Factor9 N/A 1.86
Y2 - ISO Factor10 N/A 2.77
  • 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 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 4 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 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 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 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.