PART NO : AP0643KT                    
 

SET 404 (598A / 592A​)
Timken Inner Cup & Cone Bearing Kit

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.

MERITOR EQUIVALENT :
AP0643KM​

APPLICATION
Meritor
Rockwell
Eaton

SPECIFICATIONS
Cup Part Number  :  592A
Cone Part Number  :  598A
Design Units  :  Imperial
Bearing Weight  :  2.6kg
Cage Type  :  Stamped Steel

DIMENSIONS
d - Bore  :  92.075 mm
D - Cup Outer Diameter  :  152.400 mm
B - Cone Width  :  36.322 mm
C - Cup Width  :  30.163 mm
T - Bearing Width  :  39.688 mm

ABUTMENT AND FILLET DIMENSIONS​
R - Cone Backface "To Clear" Radius¹  :  6.35 mm
r - Cup Backface "To Clear" Radius²  :  3.30 mm
da - Cone Frontface Backing Diameter​  :  101.09 mm
db - Cone Backface Backing Diameter  :  113.03 mm
Da - Cup Frontface Backing Diameter  :  145.03 mm
Db - Cup Backface Backing Diameter  :  134.87 mm
Ab - Cage-Cone Frontface Clearance  :  2.3 mm
Aa - Cage-Cone Backface Clearance  :  3.8 mm
a - Effective Center Location3  :  -2.5 mm

BASIC LOAD RATINGS
C90 - Dynamic Radial Rating (90 million revolutions)^4​  :  56000 N
C1 - Dynamic Radial Rating (1 million revolutions)⁵​  :  216000 N
C0 - Static Radial Rating​  :  319000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)⁶​  :  42400 N

FACTORS
K - Factor7​  :  1.32
e - ISO Factor⁸​  :  0.44
Y - ISO Factor⁹  :  1.36
G1 - Heat Generation Factor (Roller-Raceway)  :  151
G2 - Heat Generation Factor (Rib-Roller End)  :  36.8
Cg - Geometry Factor  :  0.142

BEARING LIFE CALCULATION TOOL