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

Unit of Measure

Key Dimensions

O.D. (D)

 N/A 120.000 mm4.7244 in

Cup Part Number

 N/A Y31311M
e Factor 1 N/A 0.83
K Factor 2 N/A 0.71
Y Factor 3 N/A 0.73

Other Dimensions

Weight

 N/A 1.6 Kg3.5 lb

C - Cup Width

 N/A 21.000 mm0.8268 in
Max Housing Fillet Radius4 N/A 2.03 mm0.08 in

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 115.10 mm4.56 in

Housing Backing Shoulder Dia. - Backface (Db)

 N/A 103.12 mm4.06 in

Factors

G1 Factor

 N/A 45.5

G2 Factor

 N/A 20
Geometry Factor (Cg)5 N/A 0.0739
  • 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.
  • 5 Geometry constant for Lubrication Life Adjustment Factor a3l.