HM120848 Timken Tapered Roller Bearing Cone Only Timken HM120848 Bore 4.00 in

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

HM120848

Bore (d)

4.0000 in101.600 mm

Inner Ring Width (B)

1.9375 in49.213 mm
Dynamic Radial Load Rating - 1M Revs (C1) 160700 lbf270000 N
Dynamic Radial Load Rating - 90M Revs (C90) 215700 lbf70000 N
K Factor 32.21

Other Dimensions

Weight

19.36 lb8.781 Kg
Effective Center Location4-0.52 in-13.2 mm
Max Shaft Fillet Radius50.06 in1.5 mm

Shaft Backing Shoulder Diameter - Frontface (da)

4.41 in112 mm

Shaft Backing Shoulder Diameter - Backface (db)

4.41 in112 mm

Cage Location rel. to BF (Aa)

0.06 in1.5 mm

Cage Location rel. to FF (Ab)

0 in0 mm

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)67130 lbf31700 N

Static Radial Load Rating (CO)

96900 lbf431000 N

Factors

Geometry Factor (Cg)70.0941
  • 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.