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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

Other Dimensions

Weight

 N/A 0.70 Kg1.6 lb

C - Cup Width

 N/A 23 mm0.9055 in
Max Housing Fillet Radius1 N/A 2.54 mm0.1 in

Housing Backing Shoulder Diameter - Frontface (Da)

 N/A 85.1 mm3.39 in

Housing Backing Shoulder Diameter - Backface (Db)

 N/A 80.01 mm3.15 in

Key Dimensions

Series

 N/A M205100

Cup Part Number

 N/A JM205110V

O.D. (D)

 N/A 90 mm3.5433 in
K Factor 2 N/A 1.78
e Factor 3 N/A 0.33
Y Factor 4 N/A 1.82

Factors

G1 Factor

 N/A 48.2

G2 Factor

 N/A 15.2
Geometry Factor (Cg)5 N/A 0.0885
  • 1 These maximum fillet radii will be cleared by the bearing corners.
  • 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 factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 5 Geometry constant for Lubrication Life Adjustment Factor a3l.