Montage of Timken Bearing Products
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The configuration of the TDO provides a wide effective bearing spread, making it ideal for applications in which overturning moments are a significant load component. TDO bearings can be used in fixed positions or allowed to float in the housing bore.
Unit of Measure

Specifications

Series

N/A M241500

Cone Part Number

N/A M241547C

Cup Part Number

N/A M241513D

Design Units

N/A Imperial

Bearing Weight

N/A 67.50 lb30.618 Kg

Cage Type

N/A Stamped Steel

Ab - Cage-Cone Frontface Clearance

N/A 0.12 in3 mm

Dimensions

d - Bore

N/A 8 in203.2 mm

D - Cup Outer Diameter

N/A 11.8750 in301.625 mm

B - Cone Width

N/A 2.2813 in57.945 mm

C - Double Cup Width

N/A 5.5120 in140.005 mm

T - Bearing Width across Cones

N/A 4.9391 in125.453 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.14 in3.600 mm
r - Cup Frontface "To Clear" Radius2 N/A 0.03 in0.8 mm

db - Cone Backface Backing Diameter

N/A 8.70 in221.00 mm

Da - Cup Frontface Backing Diameter

N/A 11.50 in292.10 mm

Aa - Cage-Cone Backface Clearance

N/A 0.16 in4.1 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 N/A 40100 lbf178000 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 269000 lbf1200000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 69800 lbf311000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 22800 lbf102000 N

Factors

K - Factor7 N/A 1.76
e - ISO Factor8 N/A 0.7
Y1 - ISO Factor9 N/A 0.97 1.44
Y2 - ISO Factor10 N/A 1.44
G1 - Heat Generation Factor (Roller-Raceway)11 N/A 954

G2 - Heat Generation Factor (Rib-Roller End)

N/A 128
Cg - Geometry Factor12 N/A 0.128
  • 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 for a single-row, C90(2) is the two-row radial value.
  • 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.
  • 11 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 12 Geometry constant for Lubrication Life Adjustment Factor a3l.