1.High quality and Competitive price, 2.ISO9001:2008 3.material:chrome steel and stainless steel

1.ISO9001:2000 2.model series:NK,NKS,RNA49,RNA69,RNA49-RS,RNA49-2RS 3.good price 4.Needle roller bearings without inner ring

Needle roller bearings without inner ring includes NK,NKS,RNA49,RNA69,RNA49-RS,RNA49-2RS series.The rolling needles roll directly on the quenched and ground shaft.The needle bearings without inner ring are compact in structure.The rotating precision will be increased if machined with high precision.

Our products are sold well in Europe ang Mid East.

Example:

Shaft Diameter	Bearing Designation	Basic size			Load		Limiting Speed
		Fw	D	C	Cr Dynamic	Cor Static	Oil
mm		mm			N		rpm
8	NK8/12 TN	8	15	12	3050	3650	29112
10	NK10/12 TN	10	17	12	4750	5350	23500
12	NK12/12	12	19	12	6050	6400	21640
	NK12/16	12	19	16	8200	9800	21640
14	NK14/16	14	22	16	8260	9600	18322
	NKS14	14	25	16	10400	10800	17652
	RNA4900	14	22	13	8060	9000	18322
	RNA6900	14	22	22	8281	11612	18322
15	NK15/12	15	23	12	8600	10070	21004
16	NK16/16	16	24	16	9030	11900	15522
	NK16/20	16	24	20	10400	16800	15522
	RNA4901	16	24	13	6400	8900	15522
	RNA6901	16	24	22	14000	18600	15522
	NKS16	16	28	16	14900	15000	20000

Needle roller bearings,professional needle bearing manufacturer