Timken Bearing Cone - 555-S

PART NO : AP0740T

555-S​
Timken Front Axle Outer Cone Bearing

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.

APPLICATION
MERITOR FL941, MFS73

SPECIFICATIONS
Cone Part Number : 555-S
Design Units : Imperial
Cage Type : Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)¹ : 394000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)² : 102000 N

BEARING DIMENSIONS
Bore (d) : 57.150 mm
Cone Width (B) : 36.678 mm

ABUTMENT AND FILLET DIMENSIONS​
R - Cone Backface "To Clear" Radius³ : 3.600 mm
da - Cone Frontface Backing Diameter : 70 mm
db - Cone Backface Backing Diameter : 76 mm
Ab - Cage-Cone Frontface Clearance : 2 mm
Aa - Cage-Cone Backface Clearance : 1.8 mm
a - Effective Center Location⁴ : -9.4 mm

BASIC LOAD RATINGS
C90 - Dynamic Radial Rating (90 million revolutions)⁵ : 58600 N
C1 - Dynamic Radial Rating (1 million revolutions)⁶ : 226000 N
C0 - Static Radial Rating : 248000 N
C_a90 - Dynamic Thrust Rating (90 million revolutions)⁷ : 34700 N

FACTORS
K - Factor⁸ : 1.69
G1 - Heat Generation Factor (Roller-Raceway) : 91
G2 - Heat Generation Factor (Rib-Roller End) : 21.1
Cg - Geometry Factor​ : 0.111

BEARING LIFE CALCULATION TOOL