PART NO : AP0644KT                    
 

SET 401 (580 - 572)
Timken Outer 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 :
AP0644KM

APPLICATION
MERITOR
EATON

SPECIFICATIONS
Cone Part Number  :  580
Cup Part Number  :  572
Design Units  :  Imperial
Bearing Weight  :  2.1kg
Cage Type  :  Stamped Steel

BEARING DIMENSIONS
d - Bore  :  82.550 mm
D - Cup Outer Diameter  :  139.992 mm
B - Cone Width​  :  36.098 mm
C - Cup Width​  :  28.575 mm
T - Bearing Width​  :  36.513 mm

ABUTMENT AND FILLET DIMENSIONS​
R - Cone Backface "To Clear" Radius1  :  3.560 mm
r - Cup Backface "To Clear" Radius2  :  3.30 mm
da - Cone Frontface Backing Diameter  :  90.93 mm
db - Cone Backface Backing Diameter  :  98.04 mm
Da - Cup Frontface Backing Diameter  :  133.35 mm
Db - Cup Backface Backing Diameter  :  124.97 mm
Ab - Cage-Cone Frontface Clearance  :  2.5 mm
Aa - Cage-Cone Backface Clearance  :  3 mm
a - Effective Center Location3  :  -5.3 mm

BASIC LOAD RATINGS
C90 - Dynamic Radial Rating (90 million revolutions)⁴  :  53600 N
C1 - Dynamic Radial Rating (1 million revolutions)⁵  :  207000 N
C0 - Static Radial Rating  :  291000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)⁶​  :  37100 N

FACTORS
K - Factor⁷  :  1.45
e - ISO Factor⁸  :  0.4
Y - ISO Factor⁹  :  1.49
G1 - Heat Generation Factor (Roller-Raceway)  :  126
G2 - Heat Generation Factor (Rib-Roller End)  :  32
Cg - Geometry Factor  :  0.13

BEARING LIFE CALCULATION TOOL