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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

Specifications

Series

 1100

Cup Part Number

 1130

Design Units

 Imperial

Dimensions

D - Cup Outer Diameter

 1.7500 in44.450 mm

C - Cup Width

 0.625 in15.875 mm

Abutment and Fillet Dimensions

r - Cup Backface "To Clear" Radius1 0.030 in0.76 mm

Da - Cup Frontface Backing Diameter

 1.63 in41.40 mm

Db - Cup Backface Backing Diameter

 1.56 in39.62 mm

Factors

K - Factor2 2.37
e - ISO Factor3 0.25
Y - ISO Factor4 2.43

G1 - Heat Generation Factor (Roller-Raceway)

 6.7

G2 - Heat Generation Factor (Rib-Roller End)

 4.8
Cg - Geometry Factor5 0.0413
  • 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.