Hitachi EX300-1 Excavator Slewing Bearing

Product Details

Series	3400
Cone Part Number	3476
Cup Part Number	3426
Design Units	Imperial
Bearing Weight	0.70 Kg
Cage Type	Stamped Steel
d	31.750 mm
D	79.324 mm
B - Cone Width	29.771 mm
C - Cup Width	23.813 mm
B	29.370 mm
R - Cone Backface To Clear Radius1	1.270 mm
r - Cup Backface To Clear Radius2	3.30 mm
da - Cone Frontface Backing Diameter	40.89 mm
db - Cone Backface Backing Diameter	42.93 mm
Da - Cup Frontface Backing Diameter	74.68 mm
Db - Cup Backface Backing Diameter	67.06 mm
Ab - Cage-Cone Frontface Clearance	1.3 mm
Aa - Cage-Cone Backface Clearance	1 mm
a - Effective Center Location3	-8.6 mm
C90 - Dynamic Radial Rating (90 million revolutions)4	6100 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5	23500 lbf
C0 - Static Radial Rating	26800 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6	3820 lbf
K - Factor7	1.6
e - ISO Factor8	0.37
Y - ISO Factor9	1.64
G1 - Heat Generation Factor (Roller-Raceway)	29.9
G2 - Heat Generation Factor (Rib-Roller End)	11.2
Cg - Geometry Factor	0.0781