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

O.D. (D)

 N/A 736.600 mm29.0000 in

Cup Part Number

 N/A LM377410
e Factor 1 N/A 0.35
Y Factor 2 N/A 1.73

Other Dimensions

C - Cup Width

 N/A 80.963 mm3.1875 in
Max Housing Fillet Radius3 N/A 6.35 mm0.250 in

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 710.20 mm27.96 in

Housing Backing Shoulder Dia. - Backface (Db)

 N/A 695.96 mm27.40 in

Factors

Geometry Factor (Cg)4 N/A 0.27
  • 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.