3D CAD and 2D Drawings

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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

Specifications

Series

N/A 12000

Cone Part Number

N/A 12175

Cup Part Number

N/A 12303-B

Design Units

N/A Imperial

Bearing Weight

N/A 2.5 lb1.1 Kg

Cage Type

N/A Stamped Steel

Dimensions

d - Bore

N/A 1.7500 in44.450 mm

D - Cup Outer Diameter

N/A 3.0312 in76.992 mm

D1 - Flange Outer Diameter

N/A 3.1718 in80.564 mm

B - Cone Width

N/A 0.6750 in17.145 mm

C - Cup Width

N/A 0.4688 in11.908 mm

C1 - Cup Flange Width

N/A 0.1406 in3.571 mm

T1 - Bearing Width

N/A 0.6875 in17.463 mm

T - Bearing Width to Flange

N/A 0.3593 in9.126 mm

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.06 in1.5 mm
r - Cup Backface "To Clear" Radius2 N/A 0.06 in1.5 mm

da - Cone Frontface Backing Diameter

N/A 1.95 in49.5 mm

db - Cone Backface Backing Diameter

N/A 2.05 in52.1 mm

Da - Cup Frontface Backing Diameter

N/A 2.99 in74.93 mm

Ab - Cage-Cone Frontface Clearance

N/A 0.11 in2.8 mm

Aa - Cage-Cone Backface Clearance

N/A 0.04 in1 mm
a - Effective Center Location3 N/A 0 in0 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4 N/A 2890 lbf12800 N
C1 - Dynamic Radial Rating (1 million revolutions)5 N/A 11100 lbf49500 N

C0 - Static Radial Rating

N/A 13100 lbf58100 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 2500 lbf11100 N

Factors

K - Factor7 N/A 1.15
e - ISO Factor8 N/A 0.51
Y - ISO Factor9 N/A 1.19
G1 - Heat Generation Factor (Roller-Raceway)10 N/A 21

G2 - Heat Generation Factor (Rib-Roller End)

N/A 15.8
Cg - Geometry Factor11 N/A 0.0766
  • 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 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 11 Geometry constant for Lubrication Life Adjustment Factor a3l.
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