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 M144414X

O.D. (D)

 N/A 12.3750 in314.325 mm

Outer Ring Width (C)

 N/A 2.0547 in52.189 mm
e Factor 1 N/A 0.59
K Factor 2 N/A 2.07

Other Dimensions

Weight

 N/A 27.1 Kg59.80 lb
Max Housing Fillet Radius3 N/A 0.06 in1.5 mm

Housing Backing Shoulder Dia. - Backface (Db)

 N/A 11.54 in293.10 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.