Single Row Radial Needle Roller Bearing

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Product Description

Product Parameter

Material:	Bearing Steel	K Type:	Radial Needle And Cage Assemblies
NA,NKI,RNA,NK Type:	Outer With Double Raised Edge Single Row	NA,RNA Type:	Outer With Double Raised Edge Double Row
HK,BK Type:	Stamping Outer Needle Roller Bearing	Application:	Used In Automobile Components
High Light:	single row roller bearing, radial needle bearing

Needle roller bearing

It is a bearing which uses small cylindrical rollers. They are used to reduce friction of a rotating surface.Needle bearings have a large surface area that is in contact with the bearing outer surfaces compared to ball bearings . Additionally there is less added clearance (difference between the diameter of the shaft and the diameter of the bearing) so they are much more compact. The typical structure consists of an inner race (or sometimes merely a shaft), a needle cage which orients and contains the needle rollers, the needle rollers themselves, and an outer race.

Radial needle bearings are cylindrical and use rollers parallel to the axis of the shaft. Thrust needle bearings are flat and use a radial pattern of needles.Needle bearings are heavily used in engine components such as rocker arm pivots

	Bearing Designation					Mass Approx	Boudary Dimensions				Basic Load Rating		Limiting Speed
Shaft Diameter	Structure				Original Code	Mass Approx	d	Fw	D	C	Cr Dynamic	Cor Static	Oil
mm	NKI	NKIS	NA49	NA69	Original Code	g	mm				N		rpm
8	-	NKIS 8	-	-	-	46	8	14	25	16	1240	11300	21500
9	NKI 9/12	-	-	-	-	14.6	9	12	19	12	6200	7002	21700
10	NKI 10/16	-	-	-	-	27.3	10	14	22	16	9808	10500	19650
	-	-	NA 4900	-	4524900	21	10	14	22	13	8006	9000	23700
	-		-	NA 6900	6534900	38.4	10	14	22	22	8281	11612	23700
	NKI 12/20	-	-	-	-	39	12	16	24	20	14000	18400	21000
	-	-	-	NA 6901	6534901	44.5	12	16	24	22	11647	17052	20000
	-	NKIS 12	-	-	-	58	12	18	30	16	16000	17000	20000
15	NKI 15/16	-	-	-	-	38	15	19	27	16	8847	12853	19100
	NKI 15/20	-	-	-	-	45.7	15	19	27	20	12347	19053	19100
	-	-	NA 4902	-	4524902	32	15	20	28	13	6447	9053	18800
	-	-	-	NA 6902	6534902	61.6	15	20	28	23	13100	20900	18800
	-	NKIS 15	-	-	-	90	15	22	35	20	23500	24000	17000
17	NKI 17/16	-	-	-	-	41.4	17	21	29	16	13000	18200	20000
	NKI 17/20	-	-	-	-	52.3	17	21	29	20	17100	25000	21000
	-	-	NA 4903	-	4524903	32.8	17	22	30	13	7010	10010	17000
	-	-	-	NA 6903	6534903	68.2	17	22	30	23	14400	24900	17000
20	NKI 20/16	-	-	-	-	48.5	20	24	32	16	10800	17000	16700
	-	-	NA 4904	-	4524904	70.2	20	25	37	17	11912	16594	16200
	-	NKIS 20	-	NA 6904	6534905	119	20	28	42	20	26500	35500	14000
22	NKI 22/16	-	-	-	-	50	22	25	34	16	10200	15340	16200
	-	-	NA 49/22	-	-	76	22	28	39	17	12996	19175	14360
	-	-	-	NA 69/22	-	130	22	28	39	30	21375	35750	14360
	NKI 25/20	-	-	-	-	101	25	29	38	20	21900	24000	14000
25	NKI 25/30	-	-	-	-	115	25	29	38	30	31500	56000	14000
	-	-	NA 4905	-	4524905	76	25	30	42	17	13452	20475	14000
	-	-	-	NA 6905	6534905	138	25	30	42	30	19300	31750	14000
	-	NKIS 25	-	-	-	160	25	32	47	22	32000	55000	12500
	NKI 28/20	-	-	-	-	132	28	32	45	20	23100	37500	11400
28	NKI 28/30	-	-	-	-	162	28	32	45	30	32500	42000	12500
	-	-	NA 49/28	-	45449/28	90.7	28	32	45	17	13900	20100	12500
	-	-	-	NA 69/28	-	170	28	32	45	30	22400	36850	12500
30	NKI 30/20	-	-	-	-	145	30	35	45	20	24000	32000	12000
	NKI 30/30	-	-	-	-	171	30	35	45	30	29000	36000	11000
	-	NKIS 30	-	-	-	184	30	37	52	22	31000	39000	12000
	-	-	NA 4906	-	4524906	101	30	35	47	17	25000	34000	11000
	-	-	-	NA 6906	6534906	192	30	35	47	30	40500	63000	11000
32	NKI 32/20	-	-	-	-	101	32	35	45	20	13851	26900	12000
	NKI 32/30	-	-	-	-	122	32	35	45	30	18000	42000	12000
	-	-	NA 49/32	-	45449/32	150	32	40	52	20	19000	32600	11000
	-	-	-	NA 69/32	66349/32	272	32	40	52	36	25500	68500	11000
35	NKI 35/20	-	-	-	-	139	35	40	50	20	21000	41000	11000
	NKI 35/30	-	-	-	-	165	35	40	50	30	22200	51350	11000
	-	-	NA 4907	-	4524907	151	35	42	55	20	19800	41500	11000
	-	-	-	NA 6907	6534907	301	35	42	55	36	26000	60500	11000
	-	NKIS 35	-	-	-	210	35	43	58	22	33000	56000	9500
38	NKI 38/20	-	-	-	-	136	38	43	53	20	27000	49000	11000
38	NKI 38/30	-	-	-	-	207	38	43	53	30	38000	69000	11000
40	NKI 40/20	-	-	-	-	124	40	45	55	20	22000	48000	11000
	NKI 40/30	-	-	-		184	40	45	55	30	35000	86000	11000
	-	NKIS 40	-	-		281	40	50	65	22	39000	65000	9000
	-	-	NA 4908	-	4544908	123	40	48	62	22	31036	63873	9000
	-	-	-	NA 6908	6534908	401	40	48	62	40	64000	112000	9000
42	NKI 42/20	-	-	-	-	138	42	47	57	20	26000	52500	9500
42	NKI 42/30	-	-	-	-	222	42	47	57	30	34000	69000	9000
45	NKI 45/25	-	-	-	-	218	45	50	62	25	36000	70000	9000
	NKI 45/35	-	-	-	-	289	45	50	62	35	41500	102000	9000
	-	-	NA 4909	-	4544909	260	45	50	68	22	37000	69500	9000
	-	-	-	NA 6909	6534909	479	45	50	68	40	61500	123500	9000
	-	NKIS 45	-	-	-	306	45	55	72	22	43000	71000	7500
50	NKI 50/25	-	-	-	-	262	50	55	68	25	32000	78000	7890
	NKI 50/35	-	-	-	-	350	50	55	68	35	45000	82000	7000
	-	-	NA 4910	-	4544910	264	50	58	72	22	41000	72000	7000
	-	-	-	NA 6910	6534910	457	50	58	72	40	68000	135000	7000
	-	NKIS 50	-	-	-	510	50	60	80	28	60000	95000	7000
55	NKI 55/25	-	-	-	-	280	55	60	72	25	42000	82000	6500
	NKI 55/35	-	-	-	-	357	55	60	72	35	48000	126800	6500
	-	-	NA 4911	-	4544911	386	55	63	80	25	50600	96580	6500
	-	-	-	NA 6911	6534911	760	55	63	80	45	82560	172000	6500
	-	NKIS 55	-	-	-	558	55	65	85	28	49000	96000	6500
60	NKI 60/25	-	-	-	-	388	60	68	82	25	35500	85000	6500
	NKI 60/35	-	-	-	-	553	60	68	82	35	58000	135000	6000
	-	-	NA 4912	-	4544912	412	60	68	85	25	52800	11050	6000
	-	-	-	NA 6912	6534912	798	60	68	85	45	88500	186000	6000
	-	NKIS 60	-	-	-	550	60	70	90	28	65000	110000	6000
65	NKI 65/25	-	-	-	-	467	65	73	90	25	45000	89000	6000
	NKI 65/35	-	-	-	-	649	65	73	90	35	65000	111000	6000
	-	-	NA 4913	-	4544913	435	65	72	90	25	57500	110500	6000
	-	-	-	NA 6913	6534913	821	65	72	90	45	87600	194500	6000
	-	NKIS 65	-	-	-	641	65	75	95	28	69000	140000	6000
70	NKI 70/25	-	-	-	-	521	70	80	95	25	56000	125000	5500
	NKI 70/35	-	-	-	-	737	70	80	95	35	75000	150000	5500
	-	-	NA 4914	-	4544914	712	70	80	100	30	79000	154000	5500
	-	-	-	NA 6914	6534914	1362	70	80	100	54	121000	263000	5500
	-	NKIS 70	-	-	-	865	70	80	100	28	75000	133000	5500
75	-	-	NA 4915	-	4544915	765	75	85	105	30	82000	158000	5500
75	-	-	-	NA 6915	6534915	1429	75	85	105	54	128000	272000	5500
80	-	-	NA 4916	-	4544916	870	80	90	110	30	81000	170500	5500
80	-	-	-	NA 6916	6534916	1510	80	90	110	54	130500	280600	5000
85	-	-	NA 4917	-	4544917	1250	85	100	120	35	111000	237000	4600
85	-	-	-	NA 6917	6534917	2200	85	100	120	63	166000	400000	4600
90	-	-	NA 4918	-	4544918	1312	90	105	125	35	114000	250000	4400
90	-	-	-	NA 6918	6534918	2310	90	105	125	63	172000	425000	4400
95	-	-	NA 4919	-	4544919	1371	95	110	130	35	116000	260000	4200
95	-	-	-	NA 6919	6534919	2500	95	110	130	63	174000	440000	4200
100	-	-	NA 4920	-	4544920	1900	100	115	140	40	120000	274000	4000
100	-	-	-	NA 6920	6534920	3170	100	115	140	71	190000	520000	4000
120	-	-	NA 4922	-	4544922	2070	110	125	150	40	132000	290000	3700
120	-	-	-	NA 6922	-	1080	110	120	140	30	94000	216000	3900
130	-	-	NA 4924	-	4544924	2860	120	135	165	45	181000	390000	3400
130	-	-	-	NA 4824	-	1170	120	130	150	30	99000	239000	3600
140	-	-	NA 4926	-	4544926	3900	130	150	180	50	203000	470000	3100
	-	-	-	NA 4826	-	1810	130	145	165	35	118000	310000	3200
	-	-	NA 4928	-	4544928	4150	140	165	190	50	209000	500000	2900
	-	-	-	NA 4828	-	1920	140	150	175	35	120000	325000	3000

Single Row Radial Needle Roller Bearing K , NA , NKI , RNA , NK , HK , BK 0

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