(2Pcs) 21075 Timken Tapered Roller Bearing Cone Only Timken 21075-20024 USA 2PCS

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.

Key Dimensions

Cone Part Number

21075

Bore (d)

0.7500 in19.050 mm

Inner Ring Width (B)

0.8598 in21.839 mm
Dynamic Radial Load Rating - 1M Revs (C1) 112400 lbf55100 N
Dynamic Radial Load Rating - 90M Revs (C90) 23210 lbf14300 N
K Factor 30.99

Other Dimensions

Weight

1.34 lb0.61 Kg
Effective Center Location4-0.23 in-5.8 mm
Max Shaft Fillet Radius50.06 in1.5 mm

Shaft Backing Shoulder Diameter - Frontface (da)

1.03 in26 mm

Shaft Backing Shoulder Diameter - Backface (db)

1.24 in31.5 mm

Cage Location rel. to BF (Aa)

0.1 in2.5 mm

Cage Location rel. to FF (Ab)

0.09 in2.3 mm

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)63250 lbf14400 N

Static Radial Load Rating (CO)

9560 lbf42500 N

Factors

G1 Factor

7

G2 Factor

3.55
Geometry Factor (Cg)70.0558
  • 1 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 2 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values.
  • 3 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 4 Negative value indicates effective center inside cone backface.
  • 5 These maximum fillet radii will be cleared by the bearing corners.
  • 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 Geometry constant for Lubrication Life Adjustment Factor a3l.