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Tapered Roller Bearings - 2S (Matched Bearing Assembly, with snap ring spacer)
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Unit of Measure

Specifications

Cone Part Number

 N/A LM11749

Cup Part Number

 N/A LM11710

Inner Spacer Part Number

 N/A K106398R

Outer Spacer Part Number

 N/A K106397R

Design Unit

 N/A Inch

Dimensions

d - Bore

 N/A 11/16 in17.463 mm

D - Cup Outer Diameter

 N/A 1.5700 in39.878 mm

T - Width

 N/A 1.1900 in30.226 mm

C - Width

 N/A 0.9400 in23.876 mm

Snap Ring Diameter

 N/A 1.65 in41.91 mm

Snap Ring Width

 N/A 0.10 in2.54 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.050 in1.270 mm
r - Cup Backface "To Clear" Radius2 N/A 0.050 in1.27 mm

db - Cone Backface Backing Diameter

 N/A 0.94 in24 mm

Da - Cup Frontface Backing Diameter

 N/A 1.48 in37.59 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)

 N/A 1710 lbf7610 N
C1 - Dynamic Radial Rating (1 million revolutions)3 N/A 11500 lbf51100 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)4 N/A 838 lbf3730 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 2980 lbf13300 N

Factors

K - Factor6 N/A 2.04
e - ISO Factor7 N/A 0.29
Y1 - ISO Factor8 N/A 2.36
Y2 - ISO Factor9 N/A 3.51
  • 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.