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 68712RB

O.D. (D)

 N/A 7.1250 in180.975 mm

Outer Ring Width (C)

 N/A 1 in25.4 mm
e Factor 1 N/A 0.5
Y Factor 2 N/A 1.21

Other Dimensions

Weight

 N/A 2.7 Kg5.9 lb
Max Housing Fillet Radius3 N/A 0.130 in3.30 mm

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 6.81 in172 mm

Housing Backing Shoulder Dia. - Backface (Db)

 N/A 6.42 in163.07 mm

Factors

Geometry Factor (Cg)4 N/A 0.103
  • 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.