Montage of Timken Bearing Products
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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
Unit of Measure

Key Dimensions

Cone Part Number

 N/A HM252344

Cup Part Number

 N/A HM252310

Bore (d)

 N/A 10 in254 mm

O.D. (D)

 N/A 16.625 in422.275 mm

Width (T)

 N/A 3.3906 in86.121 mm
Dynamic Radial Load Rating - 1M Revs (C1)1 N/A 348000 lbf1550000 N
Dynamic Radial Load Rating - 90M Revs (C90) 2 N/A 90100 lbf401000 N
e Factor3 N/A 0.33
K Factor4 N/A 1.76
Y Factor 5 N/A 1.8

Other Dimensions

Weight

 N/A 97.700 lb44.30 Kg

Inner Ring Width (B)

 N/A 3.1406 in79.771 mm

Outer Ring Width (C)

 N/A 2.625 in66.675 mm
Effective Center Location6 N/A -0.37 in-9.4 mm
Max Shaft Fillet Radius7 N/A 0.27 in6.9 mm
Max Housing Fillet Radius8 N/A 0.13 in3.3 mm

Shaft Backing Shoulder Diameter - Frontface (da)

 N/A 11.06 in281 mm

Shaft Backing Shoulder Diameter - Backface (db)

 N/A 11.3 in287 mm

Housing Backing Shoulder Diameter - Frontface (Da)

 N/A 15.79 in401.07 mm

Housing Backing Shoulder Diameter - Backface (Db)

 N/A 15.43 in391.92 mm

Cage Location Relative to Backface (Aa)

 N/A 0.35 in8.9 mm

Cage Location Relative to Frontface (Ab)

 N/A 0.29 in7.4 mm

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)9 N/A 51300 lbf228000 N

Static Radial Load Rating (C0)

 N/A 475000 lbf2110000 N

Factors

G1 Factor

 N/A 1551.8

G2 Factor

 N/A 152.3
Geometry Factor (Cg)10 N/A 0.150
  • 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.