NKS SERIES

Description

NKS Series Needle Roller Bearing Dimensions

Bearing No.	Fw (mm)	D (mm)	C (mm)	Dynamic Load Cr (N)	Static Load Cor (N)	Grease RPM	Oil RPM	Weight (kg)
NKS20	20	32	20	17800	22800	13000	20000	0.049
NKS25	25	38	20	18300	25300	11000	16000	0.068
NKS28	28	42	20	32500	36500	8900	15100	0.087
NKS30	30	42	20	23500	31500	9500	14000	0.092
NKS35	35	50	22	26200	38000	7600	12000	0.118
NKS40	40	55	22	27700	45000	6500	10000	0.129
NKS45	45	62	25	36000	56000	5800	9000	0.185
NKS50	50	68	28	39500	64000	5200	8500	0.255
NKS55	55	72	28	42000	72000	4600	7200	0.285
NKS60	60	80	28	44800	82000	4300	6600	0.325
NKS65	65	85	28	47000	94000	4000	6000	0.360
NKS70	70	90	32	52000	104000	3600	5500	0.460
NKS80	80	100	32	62000	132000	3100	4800	0.620
NKS90	90	110	40	78000	168000	2700	4200	0.920
NKS100	100	120	40	96000	212000	2400	3800	1.150

Dimension Symbols

Fw = Diameter under Rollers
D = Outside Diameter
C = Bearing Width
Cr = Basic Dynamic Load Rating
Cor = Basic Static Load Rating

NKS Series bearings are heavy-duty machined needle roller bearings without an inner ring. They are intended for applications with hardened and ground shafts, providing high radial load capacity while maintaining a compact design.