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