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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 28600

Cone Part Number

N/A 28678

Cup Part Number

N/A 28622-B

Design Unit

N/A Inch

Cage Material

N/A Stamped Steel

Dimensions

d - Bore

N/A 2 in50.8 mm

D - Cup Outer Diameter

N/A 3.8437 in97.630 mm

D1 - Flange Outer Diameter

N/A 3.9960 in101.498 mm

B - Cone Width

N/A 0.9688 in24.608 mm

C - Cup Width

N/A 0.7656 in19.446 mm

C1 - Cup Flange Width

N/A 0.1560 in3.962 mm

T1 - Bearing Width to Flange

N/A 0.3592 in9.124 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.14 in3.600 mm
r - Cup Backface "To Clear" Radius2 N/A 0.030 in0.8 mm

da - Cone Frontface Backing Diameter

N/A 2.28 in58 mm

db - Cone Backface Backing Diameter

N/A 2.56 in65 mm

Da - Cup Frontface Backing Diameter

N/A 3.74 in95.00 mm

Ab - Cage-Cone Frontface Clearance

N/A 0.1 in2.5 mm

Aa - Cage-Cone Backface Clearance

N/A 0.04 in1 mm
a - Effective Center Location3 N/A -0.13 in-3.3 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4 N/A 32000 N
C1 - Dynamic Radial Rating (1 million revolutions)5 N/A 27700 lbf123000 N

C0 - Static Radial Rating

N/A 32000 lbf142000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 4950 lbf22000 N

Factors

K - Factor7 N/A 1.45
e - ISO Factor8 N/A 0.4
Y - ISO Factor9 N/A 1.49
Cg - Geometry Factor10 N/A 0.0979
  • 1 These maximum fillet radii will be cleared by the bearing corners.
  • 2 These maximum fillet radii will be cleared by the bearing corners.
  • 3 Negative value indicates effective center inside cone backface.
  • 4 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 5 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 6 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.
  • 7 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 8 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 9 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 10 Geometry constant for Lubrication Life Adjustment Factor a3l.
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