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

UPC

 N/A 0053893591629

O.D. (D)

 N/A 78 mm3.0709 in

Cup Part Number

 N/A JLM300816
e Factor 1 N/A 0.35
K Factor 2 N/A 1.68
Y Factor 3 N/A 1.72

Other Dimensions

Weight

 N/A 0 Kg0.00 lb

C - Cup Width

 N/A 13.500 mm0.5315 in
Max Housing Fillet Radius4 N/A 0.25 mm0.01 in

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 69.1 mm2.74 in

Housing Backing Shoulder Dia. - Backface (Db)

 N/A 67.06 mm2.64 in

Factors

G1 Factor

 N/A 22.5

G2 Factor

 N/A 18.1
  • 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.