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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

 23000

Cup Part Number

 23256-B

Design Units

 Imperial

Dimensions

D - Cup Outer Diameter

 2.5625 in65.088 mm

D1 - Flange Outer Diameter

 2.7147 in68.953 mm

C - Cup Width

 0.625 in15.875 mm

C1 - Cup Flange Width

 0.1563 in3.970 mm

Abutment and Fillet Dimensions

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

Da - Cup Frontface Backing Diameter

 2.52 in64.00 mm

Factors

K - Factor2 0.8
e - ISO Factor3 0.73
Y - ISO Factor4 0.82
Cg - Geometry Factor5 0.07
  • 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.