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 325420

O.D. (D)

 N/A 42.0000 in1066.800 mm

Outer Ring Width (C)

 N/A 6.000 in152.4 mm
e Factor 1 N/A 0.33
K Factor 2 N/A 1.77
Y Factor 3 N/A 1.82

Other Dimensions

Weight

 N/A 1011.300 Kg2229.40 lb
Max Housing Fillet Radius4 N/A 0.500 in12.70 mm

Housing Backing Shoulder Dia. - Backface (Db)

 N/A 39.21 in995.90 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 factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 4 These maximum fillet radii will be cleared by the bearing corners.