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Key Features

  • Available in single, double and multi-row configurations, as well as proprietary sizes
  • Designed in collaboration with OE engineers to design, engineer and test bearings for premium performance in many applications
  • Power dense designs allow for heavier loads and can help extend bearing life
  • Optimized internal geometry lowers torque and operating temperatures to extend lubrication system life
  • Can be designed to withstand high-corrosive, high-temperature and vacuum or low-lubrication environments with proprietary enhancements
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Unit of Measure

Key Dimensions

Cone Part Number

 N/A LM377449H

Cup Part Number

 N/A LM377410

Bore (d)

 N/A 558.8 mm22 in

O.D. (D)

 N/A 736.6 mm29 in

Width (T)

 N/A 104.775 mm4.125 in
Dynamic Radial Load Rating - 90M Revs (C90) 1 N/A 741000 N167000 lbf
e Factor 2 N/A 0.35
K Factor 3 N/A 1.69
Y Factor 4 N/A 1.73

Other Dimensions

Inner Ring Width (B)

 N/A 93 mm3.6614 in

Outer Ring Width (C)

 N/A 80.963 mm3.1875 in
Effective Center Location5 N/A 15.8 mm0.62 in
Max Shaft Fillet Radius6 N/A 6.4 mm0.25 in
Max Housing Fillet Radius7 N/A 6.35 mm0.25 in

Shaft Backing Shoulder Diameter - Backface (db)

 N/A 594 mm23.39 in

Housing Backing Shoulder Diameter - Frontface (Da)

 N/A 710.2 mm27.96 in

Housing Backing Shoulder Diameter - Backface (Db)

 N/A 695.96 mm27.40 in

Cage Location Relative to Backface (Aa)

 N/A 6.9 mm0.27 in

Cage Location Relative to Frontface (Ab) 

 N/A 10.16 mm0.4 in

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)8 N/A 439000 N98800 lbf
  • 1 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 2 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 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 Negative value indicates effective center inside cone backface.
  • 6 These maximum fillet radii will be cleared by the bearing corners.
  • 7 These maximum fillet radii will be cleared by the bearing corners.
  • 8 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.