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This is the most basic and most widely used type of tapered roller bearing. It 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.
Unit of Measure

Specifications

Series

 32213

Cone Part Number

 X32213

Cup Part Number

 Y32213

Design Unit

 Metric

Cage Material

 Stamped Steel

Related Assembly Number(s)

 32213-90KA1 32213-90NB2

Dimensions

d - Bore

 65 mm2.5591 in

D - Cup Outer Diameter

 120 mm4.7244 in

B - Cone Width

 31.000 mm1.2205 in

C - Cup Width

 27 mm1.063 in

T - Bearing Width

 32.750 mm1.2894 in

Abutment and Fillet Dimensions

R - Cone Backface "To Clear" Radius1 2.030 mm0.08 in
r - Cup Backface "To Clear" Radius2 1.52 mm0.06 in

da - Cone Frontface Backing Diameter

 73 mm2.87 in

db - Cone Backface Backing Diameter

 77 mm3.03 in

Da - Cup Frontface Backing Diameter

 115.06 mm4.53 in

Db - Cup Backface Backing Diameter

 107.95 mm4.25 in

Ab - Cage-Cone Frontface Clearance

 4.1 mm0.16 in

Aa - Cage-Cone Backface Clearance

 3 mm0.12 in
a - Effective Center Location3 -5.6 mm-0.22 in

Basic Load Ratings

C90 - Dynamic Radial Rating (90 million revolutions)4 45100 N10100 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5 174000 N39100 lbf

C0 - Static Radial Rating

 209000 N46900 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6 31200 N7030 lbf

Factors

K - Factor7 1.44
e - ISO Factor8 0.4
Y - ISO Factor9 1.48

G1 - Heat Generation Factor (Roller-Raceway)

 72.9

G2 - Heat Generation Factor (Rib-Roller End)

 23.4
Cg - Geometry Factor10 0.0742
  • 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.