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.

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Unit of Measure

Key Dimensions

O.D. (D)

 N/A 150 mm5.9055 in

Cup Part Number

 N/A JH913811
e Factor 1 N/A 0.78
K Factor 2 N/A 0.75
Y Factor 3 N/A 0.77

Other Dimensions

Weight

 N/A 3.1 Kg6.7 lb

C - Cup Width

 N/A 25.4 mm1 in
Max Housing Fillet Radius4 N/A 3.30 mm0.130 in

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 146.10 mm5.79 in

Housing Backing Shoulder Dia. - Backface (Db)

 N/A 125.98 mm4.96 in

Factors

G1 Factor

 N/A 78.5

G2 Factor

 N/A 17.3
Geometry Factor (Cg)5 N/A 0.0927
  • 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.