Timken Tapered Bearing Cup & Cone Kit - Set 423 (6461A / 6420)

PART NO : AP0742KT

SET 423 (6461A / 6420)​
Timken 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.

APPLICATION
MERITOR FL941, MFS73

SPECIFICATIONS
Cone Part Number : 6461A
Cup Part Number : 6420
Design Units : Imperial
Bearing Weight : 4.2kg
Cage Type : Stamped Steel

BEARING DIMENSIONS
d - Bore : 76.2 mm
D - Cup Outer Diameter : 149.225 mm
B - Cone Width​ : 54.229 mm
C - Cup Width​ : 44.450 mm
T - Bearing Width​ : 53.975 mm

ABUTMENT AND FILLET DIMENSIONS​
R - Cone Backface "To Clear" Radius1 : 9.650 mm
r - Cup Backface "To Clear" Radius2 : 3.30 mm
da - Cone Frontface Backing Diameter : 89.41 mm
db - Cone Backface Backing Diameter : 107.95 mm
Da - Cup Frontface Backing Diameter : 140 mm
Db - Cup Backface Backing Diameter : 129.03 mm
Ab - Cage-Cone Frontface Clearance : 1.5 mm
Aa - Cage-Cone Backface Clearance : 2.3 mm
a - Effective Center Location3 : -15 mm

BASIC LOAD RATINGS
C90 - Dynamic Radial Rating (90 million revolutions)⁴ : 107000 N
C1 - Dynamic Radial Rating (1 million revolutions)⁵ : 411000 N
C0 - Static Radial Rating : 463000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)⁶​ : 66000 N

FACTORS
K - Factor⁷ : 1.61
e - ISO Factor⁸ : 0.36
Y - ISO Factor⁹ : 1.66
G1 - Heat Generation Factor (Roller-Raceway) : 158
G2 - Heat Generation Factor (Rib-Roller End) : 29.1
Cg - Geometry Factor : 0.0931

BEARING LIFE CALCULATION TOOL