The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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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

Other Dimensions

Weight

 N/A 0.70 Kg1.6 lb

Outer Ring Flange O.D.(D1)

 N/A 4.093 in103.962 mm

Outer Ring Width (C)

 N/A 0.7813 in19.845 mm

Outer Ring Flange Width (C2)

 N/A 0.1563 in3.97 mm
Max Housing Fillet Radius1 N/A 0.13 in3.3 mm

Housing Backing Shoulder Diameter - Frontface (Da)

 N/A 3.9 in98.04 mm

Key Dimensions

Series

 N/A 28900

Cup Part Number

 N/A 28921-B

O.D. (D)

 N/A 3.9370 in100.000 mm
K Factor 2 N/A 1.37
e Factor 3 N/A 0.43
Y Factor 4 N/A 1.41

Factors

Geometry Factor (Cg)5 N/A 0.103
  • 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.