This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft.

RELATED PRODUCTS

RELATED PRODUCTS

RELATED PRODUCTS

Unit of Measure

Key Dimensions

Cup Part Number

 N/A 451250

O.D. (D)

 N/A 12.5000 in317.500 mm

Outer Ring Width (C)

 N/A 2.4375 in61.913 mm
e Factor 1 N/A 0.33
Y Factor 2 N/A 1.84

Other Dimensions

Weight

 N/A 31.1 Kg68.70 lb
Max Housing Fillet Radius3 N/A 0.270 in6.86 mm

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 10.83 in275.08 mm

Housing Backing Shoulder Dia. - Backface (Db)

 N/A 10.59 in268.99 mm

Factors

Geometry Factor (Cg)4 N/A 0.118
  • 1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 2 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 3 These maximum fillet radii will be cleared by the bearing corners.
  • 4 Geometry constant for Lubrication Life Adjustment Factor a3l.