PART NO : AP0606KT                    
 

SET 405 (663 / 653​)
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.

SPECIFICATIONS
Cup Part Number  :  653
Cone Part Number  :  663
Design Units  :  Imperial
Bearing Weight  :  2.7kg
Cage Type  :  Stamped Steel

DIMENSIONS
d - Bore  :  82.550 mm
D - Cup Outer Diameter  :  146.050 mm
B - Cone Width  :  41.275 mm
C - Cup Width  :  31.750 mm
T - Bearing Width  :  41.275 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​  :  91.95 mm
db - Cone Backface Backing Diameter  :  99.06 mm
Da - Cup Frontface Backing Diameter  :  139.95 mm
Db - Cup Backface Backing Diameter  :  131.06 mm
Ab - Cage-Cone Frontface Clearance  :  2.5 mm
Aa - Cage-Cone Backface Clearance  :  4.3 mm
a - Effective Center Location³  :  -7.9 mm

BASIC LOAD RATINGS
C90 - Dynamic Radial Rating (90 million revolutions)^4​  :  64000 N
C1 - Dynamic Radial Rating (1 million revolutions)⁵​  :  247000 N
C0 - Static Radial Rating​  :  335000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)⁶​  :  44800 N

FACTORS
K - Factor7​  :  1.43
e - ISO Factor⁸​  :  0.41
Y - ISO Factor⁹  :  1.47
G1 - Heat Generation Factor (Roller-Raceway)  :  137
G2 - Heat Generation Factor (Rib-Roller End)  :  27.3
Cg - Geometry Factor  :  0.0919

BEARING LIFE CALCULATION TOOL