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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 X32972M

Cup Part Number

 N/A Y32972M

Bore (d)

 N/A 360.000 mm14.1732 in

O.D. (D)

 N/A 480 mm18.8976 in

Width (T)

 N/A 76.000 mm2.9921 in
Dynamic Radial Load Rating - 1M Revs (C1) 1 N/A 1250000 N281000 lbf
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 324000 N72800 lbf
e Factor 3 N/A 0.46
K Factor 4 N/A 1.27

Series

 N/A 32972M
Y Factor 5 N/A 1.31

Other Dimensions

Inner Ring Width (B)

 N/A 76 mm2.9921 in

Outer Ring Width (C)

 N/A 57 mm2.2441 in
Effective Center Location6 N/A 20.6 mm0.81 in
Max Shaft Fillet Radius7 N/A 4.060 mm0.16 in
Max Housing Fillet Radius8 N/A 3.05 mm0.12 in

Shaft Backing Shoulder Diameter - Frontface (da)

 N/A 378 mm14.88 in

Shaft Backing Shoulder Diameter - Backface (db)

 N/A 385 mm15.16 in

Housing Backing Shoulder Diameter - Frontface (Da)

 N/A 466.10 mm18.39 in

Housing Backing Shoulder Diameter - Backface (Db)

 N/A 451.10 mm17.76 in

Cage Location Relative to Backface (Aa)

 N/A 9.4 mm0.37 in

Cage Location Relative to Frontface (Ab) 

 N/A 5.8 mm0.23 in

Weight

 N/A 36.200 Kg79.80 lb

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)9 N/A 254000 N57100 lbf

Static Radial Load Rating (C0)

 N/A 2780000 N624000 lbf

Factors

G1 Factor

 N/A 2984.5

G2 Factor

 N/A 344.6
Geometry Factor (Cg)10 N/A 0.206
  • 1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 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.
  • 6 Negative value indicates effective center inside cone backface.
  • 7 These maximum fillet radii will be cleared by the bearing corners.
  • 8 These maximum fillet radii will be cleared by the bearing corners.
  • 9 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.
  • 10 Geometry constant for Lubrication Life Adjustment Factor a3l.