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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.
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Unit of Measure

Other Dimensions

Weight

 N/A 0.10 Kg0.2 lb

Inner Ring Width (B)

 N/A 15.000 mm0.5906 in
Max Shaft Fillet Radius1 N/A 2.03 mm0.08 in

Shaft Backing Shoulder Diameter - Frontface (da)

 N/A 25.5 mm1 in

Shaft Backing Shoulder Diameter - Backface (db)

 N/A 29 mm1.14 in

Cage Location Relative to Frontface (Ab) 

 N/A 2 mm0.08 in

Cage Location Relative to Backface (Aa)

 N/A -0.3 mm-0.01 in
Effective Center Location2 N/A -4.6 mm-0.18 in

Key Dimensions

Series

 N/A 32004X

Cone Part Number

 N/A XAA32004X

Bore (d)

 N/A 20 mm0.7874 in
Dynamic Radial Load Rating - 90M Revs (C90) 3 N/A 8520 N1920 lbf
Dynamic Radial Load Rating - 1M Revs (C1) 4 N/A 32900 N7390 lbf
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)5 N/A 57200 N12900 lbf
Dynamic Radial Load Rating 2-Row - 90M Revs (C90-2row) 6 N/A 14800 N3340 lbf
K Factor 7 N/A 1.56

Ratings

Static Radial Load Rating (C0)

 N/A 29400 N6600 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)8 N/A 5460 N1230 lbf

Factors

G1 Factor

 N/A 6.2

G2 Factor

 N/A 6.1
Geometry Factor (Cg)9 N/A 0.0469
  • 1 These maximum fillet radii will be cleared by the bearing corners.
  • 2 Negative value indicates effective center inside cone backface.
  • 3 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 4 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 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 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.
  • 9 Geometry constant for Lubrication Life Adjustment Factor a3l.