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 90 mm3.5433 in

Cup Part Number

 N/A JLM506811
e Factor 1 N/A 0.4
K Factor 2 N/A 1.45
Y Factor 3 N/A 1.49

Other Dimensions

Weight

 N/A 0.6 Kg1.3 lb

C - Cup Width

 N/A 20.500 mm0.8071 in
Max Housing Fillet Radius4 N/A 0.51 mm0.02 in

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 86.40 mm3.40 in

Housing Backing Shoulder Dia. - Backface (Db)

 N/A 82.04 mm3.23 in

Factors

G1 Factor

 N/A 45.6

G2 Factor

 N/A 20.4
Geometry Factor (Cg)5 N/A 0.0925
  • 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.