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TDI bearings have a one-piece double inner race and two single outer races and are typically supplied complete with an outer race spacer as a pre-set assembly. The bearing can be used at fixed positions on rotation shaft applications. For rotating housing application it can be used to float on the stationary shaft.
Unit of Measure

Specifications

Series

 N/A M224700

Cone Part Number

 N/A M224749D

Cup Part Number

 N/A M224711

Design Unit

 N/A Inch

Cage Material

 N/A Stamped Steel

Note

 N/A This part has a non-standard shoulder design. Please email customer CAD for shoulder details to ensure the proper design of mating components.

Dimensions

d - Bore

 N/A 4.7500 in120.650 mm

D - Cup Outer Diameter

 N/A 6.7812 in172.242 mm

B - Double Cone Width

 N/A 2.6875 in68.263 mm

C - Cup Width

 N/A 1.0938 in27.783 mm

T - Bearing Width across Cups

 N/A 2.6250 in66.675 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.03 in0.800 mm
r - Cup Backface "To Clear" Radius2 N/A 0.06 in1.52 mm

da - Cone Frontface Backing Diameter

 N/A 5.08 in129 mm

Db - Cup Backface Backing Diameter

 N/A 6.38 in162.05 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.04 in1 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 N/A 14200 lbf63400 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 N/A 95700 lbf426000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 N/A 24800 lbf110000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 8110 lbf36100 N

Factors

K - Factor7 N/A 1.76
e - ISO Factor8 N/A 0.33
Y1 - ISO Factor9 N/A 2.03
Y2 - ISO Factor10 N/A 3.02

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 279

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 86.6
Cg - Geometry Factor11 N/A 0.158

Spacer

Note

 N/A Spacer shows standard nominal .01 radii, actual bearing may vary
  • 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.
  • 11 Geometry constant for Lubrication Life Adjustment Factor a3l.
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