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Tapered Roller Bearings - 2TS-DM (Matched Bearing Assembly, Direct Mount)
Unit of Measure

Specifications

Cone Part Number

 N/A 28985

Cup Part Number

 N/A 28921

Related Assembly Number(s)

 N/A 28985-90093

Outer Spacer Part Number

 N/A Y1S-28921

Design Unit

 N/A Inch

Dimensions

T - Width

 N/A 2 in50.8 mm

B - Width

 N/A 2 in50.8 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.010 in0.3 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)2 N/A 6180 lbf27500 N

Factors

e - ISO Factor3 N/A 0.43
Y1 - ISO Factor4 N/A 1.59
Y2 - ISO Factor5 N/A 2.36
  • 1 These maximum fillet radii will be cleared by the bearing corners.
  • 2 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 3 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 4 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 5 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
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