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Like the TS bearing design, the TSF design 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. TSF bearings have flanged cups to facilitate axial location and accurately align seals in through-bored housings.
Unit of Measure

Specifications

Series

 290000

Cup Part Number

 291750-B

Design Units

 Imperial

Dimensions

D - Cup Outer Diameter

 17.5 in444.5 mm

D1 - Flange Outer Diameter

 17.9960 in457.098 mm

C - Cup Width

 1.5625 in39.688 mm

C1 - Cup Flange Width

 0.5000 in12.700 mm

Abutment and Fillet Dimensions

r - Cup Backface "To Clear" Radius1 0.06 in1.5 mm

Da - Cup Frontface Backing Diameter

 16.87 in428.50 mm

Factors

K - Factor2 1.55
e - ISO Factor3 0.38
Y - ISO Factor4 1.59
Cg - Geometry Factor5 0.156
  • 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.