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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 33212

Cone Part Number

 N/A XGB-33212

Cup Part Number

 N/A Y33212R

Design Unit

 N/A Metric

Cage Material

 N/A Stamped Steel

Dimensions

d - Bore

 N/A 55 mm2.1654 in

D - Cup Outer Diameter

 N/A 110 mm4.3307 in

D1 - Flange Outer Diameter

 N/A 116.000 mm4.5669 in

B - Cone Width

 N/A 38.000 mm1.4961 in

C - Cup Width

 N/A 29.000 mm1.1417 in

C1 - Cup Flange Width

 N/A 7.000 mm0.2756 in

T1 - Bearing Width to Flange

 N/A 16.000 mm0.6299 in

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 N/A 0.760 mm0.03 in
r - Cup Backface "To Clear" Radius2 N/A 1.5 mm0.06 in

da - Cone Frontface Backing Diameter

 N/A 68 mm2.68 in

db - Cone Backface Backing Diameter

 N/A 71 mm2.8 in

Da - Cup Frontface Backing Diameter

 N/A 106.93 mm4.25 in

Ab - Cage-Cone Frontface Clearance

 N/A 3.3 mm0.13 in

Aa - Cage-Cone Backface Clearance

 N/A 3.3 mm0.13 in
a - Effective Center Location3 N/A -9.9 mm-0.39 in

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4 N/A 60700 N13700 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5 N/A 234000 N52700 lbf

C0 - Static Radial Rating

 N/A 253000 N56800 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 N/A 42000 N9450 lbf

Factors

K - Factor7 N/A 1.44
e - ISO Factor8 N/A 0.4
Y - ISO Factor9 N/A 1.48

G1 - Heat Generation Factor (Roller-Raceway)

 N/A 76.2

G2 - Heat Generation Factor (Rib-Roller End)

 N/A 20
Cg - Geometry Factor10 N/A 0.0758
  • 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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