SHANGHAI YONG-XING BEARING MANUFACTURING CO.,LTD

	With Inner Ring
	Without Inner Ring
	Heavy Duty Full Complement

Heavy Duty Needle Roller Bearings With Inner Ring

NKI
NKIS
NA49...
NA69...

Stud dia. 10~80mm

Shaft Diameter	Bearing Designation and Approx Mass			Boundary Dimensions				Basic Load Rating		Limiting Speed	Shaft Diameter	Bearing Designation and Approx Mass			Boundary Dimensions				Basic Load Rating		Limiting Speed
Shaft Diameter	Current	Substituted	Mass (Ref.)	d	Fw	D	B (C)	Cr Dynamic	Cor Static	Grease	Shaft Diameter	Current	Substituted	Mass (Ref.)	d	Fw	D	B (C)	Cr Dynamic	Cor Static	Grease
mm	Current	Substituted	g	mm				N		rpm	mm	Current	Substituted	g	mm				N		rpm
10	NKI10/16		27.3	10	14	22	16	9808	10500	19650	32	NKI32/20		118	32	37	47	20	24900	43500	12000
	NA4900	4524900	21	10	14	22	13	8006	9000	23700		NA49/32	45449/32	150	32	40	52	20	19000	36200	11134
	NA6900	6534900	38.4	10	14	22	22	8281	11612	23700		NA69/32	65349/32	272	32	40	52	36	25500	68500	11134
12	NKI12/20		39	12	16	24	20	14000	18400	21000	35	NKI35/30		165	35	40	50	30	22200	51350	11134
	NA4900	4524901	25.1	12	16	24	13	5047	6352	20000		NA4907	4524907	151	35	42	55	20	19800	41500	11134
	NA6900	6534901	44.5	12	16	24	22	11647	17052	20000		NA6907	6534907	301	35	42	55	36	26000	60500	11134
	NAIS12		58	12	18	30	16	16000	17000	20000		NKIS35		210	35	43	58	22	33000	56000	9500
15	NKI15/16		38	15	19	27	16	8847	12853	19100	40	NKI40/20		124	40	45	55	20	22000	48000	10127
	NKI15/20		45.7	15	19	27	20	12347	19053	19100		NKI40/30		184	40	45	55	30	35000	86000	10127
	NA4902	4524902	32	15	20	28	13	6447	9053	18800		NA4908	4524908	123	40	48	62	22	31036	63873	8567
	NA6902	6534902	61.6	15	20	28	23	13100	20900	18800		NA6908	6534908	401	40	48	62	40	64000	112000	8567
	NKIS15		90	15	22	35	20	23500	24000	17000	45	NKI45/25		218	45	50	62	25	36000	70000	8567
17	NKI17/16		41.4	17	21	29	16	13000	18200	20000		NKI45/35		289	45	50	62	35	41500	102000	8567
	NA4903	4524303	32.8	17	22	30	13	7010	10010	17000		NA4909	4524909	260	45	50	68	22	37000	96500	8052
	NA6903	6534903	68.2	17	22	30	23	14400	24900	17000		NA6909	6534909	479	45	50	68	40	61500	123500	8052
20	NKI20/16		48.5	20	24	32	16	10800	17000	16700		NKIS45		306	45	55	72	22	43000	71000	7500
	NA4904	4524904	70.2	20	25	37	17	11912	16594	16200	50	NKI50/25		262	50	55	68	25	32000	78000	7890
	NA6904	6534904	113	20	25	37	30	16850	28300	15400		NA4910	4524910	264	50	58	72	22	41000	72000	7526
	NKIS20		119	20	28	42	20	16500	35500	14000		NA6910	6534910	457	50	58	72	40	68000	135000	7526
22	NKI22/16		50	22	25	34	16	8721	15340	16200		NKIS50		510	50	60	80	28	60000	95000	7200
	NA49/22		76	22	28	39	17	12996	19175	14360	55	NKI55/35		357	55	60	72	35	48000	126800	7156
	NA69/22		130	22	28	39	30	21375	35750	14360		NA4911	4524911	386	55	63	80	25	50600	96580	7156
25	NKI25/30		115	25	29	38	30	31500	56000	14000		NA6911	6534911	760	55	63	80	45	82560	172000	7156
	NA4905	4524905	76	25	30	42	17	13452	20475	13832	60	NKI60/25		388	60	68	82	25	35500	85000	7156
	NA6905	6534905	138	25	30	42	30	19300	31750	13832		NA4912	4524912	412	60	68	85	25	52800	110500	6022
	NKIS25		160	25	32	47	22	32000	55000	12500		NA6912	6534912	798	60	68	85	45	88500	186000	6022
	NKI25/20			25	29	38	20	21900	34000	13832		NKIS60		550	60	70	90	28	65000	110000	6300
28	NA49/28	45449/28	90.7	28	32	45	17	13900	20100	13832	65	NA4913	4524913	435	65	72	90	25	57500	110500	6022
	NA69/28		170	28	32	45	30	22400	36850	13000		NA6913	6534913	821	65	72	90	45	87600	194500	6022
	NKI28/20		96.5	28	32	42	20	23100	37500	14000		NKI65/25		562	65	73	90	25	39825	91375	6022
30	NKI30/20		112	30	35	45	20	24300	41500	13000	70	NA4914	4524914	712	70	80	100	30	79000	154000	5111
	NKI30/30		170	30	35	45	30	36500	69000	13000	70	NA6914	6534914	1326	70	80	100	54	121000	263000	5111
	NA4906	4524906	101	30	35	47	17	25000	35500	13000	80	NA4916	4524916	870	80	90	110	30	81000	170500	5111
	NA6906	6534906	192	30	35	47	30	43500	71000	13000		NA6916	6534916	1510	80	90	110	54	130500	280600	5000
	NKIS30		184	30	37	52	22	36500	50000	12000		NKI80/35		959	80	90	110	35	103000	28000	5000