Timken Bearing Cone - 598A

PART NO : AP0643T

598A​
Timken Inner 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.

SPECIFICATIONS
Cone Part Number : 598A
Design Units : Imperial
Cage Type : Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)¹ : 376000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)² : 97500 N

BEARING DIMENSIONS
Bore (d) : 92.075 mm
Cone Width (B) : 36.322 mm

ABUTMENT AND FILLET DIMENSIONS​
R - Cone Backface "To Clear" Radius³ : 6.400 mm
da - Cone Frontface Backing Diameter : 101 mm
db - Cone Backface Backing Diameter : 113 mm
Ab - Cage-Cone Frontface Clearance : 2.3 mm
Aa - Cage-Cone Backface Clearance : 3.8 mm
a - Effective Center Location⁴ : -2.5 mm

BASIC LOAD RATINGS
C90 - Dynamic Radial Rating (90 million revolutions)⁵​ : 56000 N
C1 - Dynamic Radial Rating (1 million revolutions)^6​ : 216000 N
C0 - Static Radial Rating​ : 319000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)⁷​ : 42400 N

FACTORS
K - Factor⁸ : 1.32
G1 - Heat Generation Factor (Roller-Raceway) : 151.4
G2 - Heat Generation Factor (Rib-Roller End) : 38.3
Cg - Geometry Factor​ : 0.142

BEARING LIFE CALCULATION TOOL