Part Number 396A, Tapered Roller Bearings - Single Cones

Engineers power search our entire catalog of bearing and bushings, with access to every attribute and technical specification possible. View our online catalog...

Request Information

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.

RELATED PRODUCTS

Unit of Measure

Key Dimensions | Other Dimensions | Ratings | Factors

Key Dimensions

Cone Part Number	N/A 396A
Bore (d)	N/A 1.7712 in44.988 mm
Inner Ring Width (B)	N/A 0.8660 in21.996 mm
Dynamic Radial Load Rating - 1M Revs (C1) ¹	N/A 22200 lbf98900 N
Dynamic Radial Load Rating - 90M Revs (C90) ²	N/A 5760 lbf25600 N
K Factor ³	N/A 1.45

Other Dimensions

Weight	N/A 5.24 lb2.377 Kg
Effective Center Location⁴	N/A -0.03 in-0.8 mm
Max Shaft Fillet Radius⁵	N/A 0.140 in3.600 mm
Shaft Backing Shoulder Diameter - Frontface (da)	N/A 2.24 in57 mm
Shaft Backing Shoulder Diameter - Backface (db)	N/A 2.48 in63 mm
Cage Location rel. to BF (Aa)	N/A 0.05 in1.3 mm
Cage Location rel. to FF (Ab)	N/A 0.11 in2.8 mm

Ratings

Dynamic Axial Rating - 90M Revs (Ca90)⁶	N/A 3970 lbf17600 N
Static Radial Load Rating (CO)	N/A 28100 lbf125000 N

Factors

G1 Factor	N/A 56
G2 Factor	N/A 21.4
Geometry Factor (Cg)⁷	N/A 0.0984

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 C_a90 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 C_a90 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.

Key Dimensions

Cone Part Number

Bore (d)

Inner Ring Width (B)

Other Dimensions

Weight

Shaft Backing Shoulder Diameter - Frontface (da)

Shaft Backing Shoulder Diameter - Backface (db)

Cage Location rel. to BF (Aa)

Cage Location rel. to FF (Ab)

Ratings

Static Radial Load Rating (CO)

Factors

G1 Factor

G2 Factor