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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 93000

Cone Part Number

 N/A 93800

Cup Part Number

 N/A 93125-B

Design Unit

 N/A Inch

Cage Material

 N/A Stamped Steel

Dimensions

d - Bore

 N/A 8 in203.2 mm

D - Cup Outer Diameter

 N/A 12.5000 in317.500 mm

D1 - Flange Outer Diameter

 N/A 12.9340 in328.524 mm

B - Cone Width

 N/A 2.5 in63.5 mm

C - Cup Width

 N/A 1.8125 in46.038 mm

C1 - Cup Flange Width

 N/A 0.4375 in11.113 mm

T1 - Bearing Width to Flange

 N/A 1.1250 in28.575 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.170 in4.300 mm
r - Cup Backface "To Clear" Radius2 N/A 0.130 in3.30 mm

da - Cone Frontface Backing Diameter

 N/A 8.74 in222 mm

db - Cone Backface Backing Diameter

 N/A 8.94 in227 mm

Da - Cup Frontface Backing Diameter

 N/A 11.84 in300.70 mm

Ab - Cage-Cone Frontface Clearance

 N/A 0.21 in5.3 mm

Aa - Cage-Cone Backface Clearance

 N/A 0.32 in8.1 mm
a - Effective Center Location3 N/A 0.31 in7.9 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4 N/A 42600 lbf190000 N
C1 - Dynamic Radial Rating (1 million revolutions)5 N/A 164000 lbf731000 N

C0 - Static Radial Rating

 N/A 290000 lbf1290000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 38200 lbf170000 N

Factors

K - Factor7 N/A 1.12
e - ISO Factor8 N/A 0.52
Y - ISO Factor9 N/A 1.15

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 912.5

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 126.1
Cg - Geometry Factor10 N/A 0.146
  • 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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