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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.

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Unit of Measure

Key Dimensions

Cup Part Number

 N/A 8520-B

O.D. (D)

 N/A 12.875 in327.025 mm

Outer Ring Width (C)

 N/A 1.4375 in36.513 mm
e Factor 1 N/A 0.41
K Factor 2 N/A 1.44
Y Factor 3 N/A 1.48

Other Dimensions

Weight

 N/A 13.40 Kg29.60 lb

Outer Ring Flange O.D.(D1)

 N/A 13.246 in336.448 mm

Outer Ring Flange Width (C2)

 N/A 0.375 in9.525 mm
Max Housing Fillet Radius4 N/A 0.130 in3.30 mm

Housing Backing Shoulder Dia. - Frontface (Da)

 N/A 12.40 in312.93 mm

Factors

G1 Factor

 N/A 3380

G2 Factor

 N/A 378
Geometry Factor (Cg)5 N/A 0.14
  • 1 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 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 maximum fillet radii will be cleared by the bearing corners.
  • 5 Geometry constant for Lubrication Life Adjustment Factor a3l.