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.
Unit of Measure

Key Dimensions

Cup Part Number

N/A M969812

O.D. (D)

N/A 25.5876 in649.925 mm

Outer Ring Width (C)

N/A 2.6725 in67.882 mm
e Factor 1 N/A 2.6
K Factor 2 N/A 0.67

Other Dimensions

Max Housing Fillet Radius3 N/A 0.250 in6.40 mm
  • 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.