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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.
Unit of Measure

Key Dimensions

Cup Part Number

 N/A 113181

O.D. (D)

 N/A 18.1060 in459.892 mm

Outer Ring Width (C)

 N/A 1.9375 in49.213 mm
e Factor 1 N/A 0.88
K Factor 2 N/A 0.66
Y Factor 3 N/A 0.68

Other Dimensions

Weight

 N/A 57.100 Kg125.80 lb
Max Housing Fillet Radius4 N/A 0.000 in0.00 mm

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 15.67 in397.30 mm

Housing Backing Shoulder Dia. - Backface (Db)

 N/A 15.35 in389.89 mm

Factors

G1 Factor

 N/A 966.7

G2 Factor

 N/A 98.1
Geometry Factor (Cg)5 N/A 0.172
  • 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.