4R3224 NSK Four Row Cylindrical Roller Bearings NTN

Product Details

Series	780000
Cone Part Number	EE780705
Cup Part Number	781400
Design Units	Imperial
Bearing Weight	25.5 Kg
Cage Type	Pin-Type
d	177.800 mm
D	355.6 mm
B - Cone Width	60.325 mm
C - Cup Width	41.275 mm
B	61.913 mm
R - Cone Backface To Clear Radius1	4.830 mm
r - Cup Backface To Clear Radius2	4.83 mm
da - Cone Frontface Backing Diameter	209.04 mm
db - Cone Backface Backing Diameter	207.01 mm
Da - Cup Frontface Backing Diameter	322.07 mm
Db - Cup Backface Backing Diameter	320.04 mm
Ab - Cage-Cone Frontface Clearance	6.6 mm
Aa - Cage-Cone Backface Clearance	6.9 mm
a - Effective Center Location3	-0.3 mm
C90 - Dynamic Radial Rating (90 million revolutions)4	51100 lbf
C1 - Dynamic Radial Rating (1 million revolutions)5	197000 lbf
C0 - Static Radial Rating	243000 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)6	34900 lbf
K - Factor7	1.46
e - ISO Factor8	0.4
Y - ISO Factor9	1.5
G1 - Heat Generation Factor (Roller-Raceway)	646
G2 - Heat Generation Factor (Rib-Roller End)	79.4
Cg - Geometry Factor	0.118

Phone	+65 6795 7418
Fax	+65 6795 7418