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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

 N/A A4000

Cup Part Number

 N/A A4138-B

Design Units

 N/A Imperial

Dimensions

D - Cup Outer Diameter

 N/A 1.3775 in34.989 mm

D1 - Flange Outer Diameter

 N/A 1.4985 in38.062 mm

C - Cup Width

 N/A 0.3437 in8.730 mm

C1 - Cup Flange Width

 N/A 0.0930 in2.362 mm

Abutment and Fillet Dimensions

r - Cup Backface "To Clear" Radius1 N/A 0.050 in1.3 mm

Da - Cup Frontface Backing Diameter

 N/A 1.34 in33.53 mm

Factors

K - Factor2 N/A 1.29
e - ISO Factor3 N/A 0.45
Y - ISO Factor4 N/A 1.32
Cg - Geometry Factor5 N/A 0.0355
  • 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.