Ikc Na4904 Heavy Duty Needle Roller Bearing Na4905 Na4906 Na4908 Na4910 Na4912 Equivalent SKF IKO NSK Koyo

Model NO.: NA4904 The Number of Rows: Single Material: Bearing Steel Load Direction: Radial Bearing Trademark: IKC SKF NSK NTN KOYO NACHI TWB TIMKEN HRB ZWZ Specification: CE ISO HS Code: 84821020 Rolling Body: Roller Bearings Outer Dimension: Small (28-55mm) Spherical: Non-Aligning Bearings Separated: Unseparated Transport Package: Single Box Origin: China, Japan, Germany, USA, Italy, France
Basic Info.
Model NO.:  NA4904
 
Rolling Body:Roller Bearings
The Number of Rows:Single
 
Outer Dimension:10-190mm
Material:Bearing Steel
 
Spherical:Non-Aligning Bearings
Load Direction:Radial Bearing

 
Application:Gear Box,Printing Machinery,Other Machinery
Export Markets:Global
Additional Info.
Trademark:IKC
 
Packing:Single Packing
Standard:SGS
 
Origin:Jiangsu, China
HS Code:84821020
 
Production Capacity:1000, 000PCS/Month
Product Description
Needle bearings have a large surface area that is in contact with the bearing outer surfaces. Additionally there is less added clearance so they are much more compact. The typical structure consists of a needle cage which orients and contains the needle rollers, the needle rollers themselves, and an outer race and sometimes housing itself. 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. Full compliment bearings have solid inner and outer rings and rib-guided cylindrical rollers.
 
Main products
Light series needle roller bearings (NK,NKI,NKS,NKIS) 
Heavy series needle roller bearings (NA,RNA,RNA-RS,RNA-2RS) 
Curve needle rollers (KR,CF,CR,CNBH) 
Strut needle rollers (NART,NUTR,CCYR,STO,RSTO,NAST-ZZ) 
Not obstructs side needle roller bearings(NAO,RNAO) 
Needle roller-thrust ball bearings (NX,NX-Z,NKX,NKX-Z) 
Needle roller-thrust cylindrical bearings (NKXR,NKXR-Z) 
Radial needle roller-thrust cylindrical needle roller bearings (ZARN) 
Thrust-cylindrical needle roller bearings (811,812,WS,GS) 
Needle rollers and cages (K,KR,KS,KBK,KZK) 
Drawn cup needle roller clutches and assemblies (HF,HFL)
 
Specifications
Solid collor Needle Roller Bearing NA NKI series 
1.Material:GCr15,high precision,long life 
2.Best price and Welcome OEM orders
Solid collor needle Roller Bearing with inner ring NA NKI series
 
We supply all size NKI NA series needle bearing as best price on good quality.


The needle roller bearing without inner ring is suitbale for the parts of which the radial size is limited.
Beacuse of no inner ring,the surface os shaft journal fitted with it is acted directly as rolling surface.It is requested that the surface hardness be no less than HRC60,surface roughness,no more tahn 0.63um.This kind of bearing does not limmit the axial shift and housing and has high limiting rotational speed.

The inner ring has no shoulder in this bearing.For this purpose,the inner ring,outer ring,copleteset of needles and cage can be mounted respectively.This bearing does not limit the axial shift os shaft and outer housing.Since the cage separates the needles so as to reduce friction.It can be used for the partswith high rotational speed.


Model RNAS,NK needle roller bearings withour inner ring
Model NA,NKI needle roller bearings with inner ring

 

Shaft Diameter	Bearing Designation		Mass Approx	BoundaryDimensions			BasicLoadRating		Limiting Speed
	CurrentCode	OriginalCode		Fw	D	C	Dynamic	Static	Oil
mm			g	mm			N		rpm

5	NK5/10TN		2.9	5	10	10	2100	1400	36780
	NK05/08			5	10	8
	NK05/10TN-OH			5	10	12	2350	1920	39000
	NK05/12TN		3.7	5	10	12	3000	2650	39000
6	NK06/10			6	12	10	2600	2200	37000
	NK06/10TN			6	12	10	2600	2200	37000
	NK06/12TN		5.7	6	12	12	3350	3150	37000
	RNA6X13X8TN			6	13	8
7	NK07/10		6.9	7	14	10	2850	2650	34000
	NK07/12		8.2	7	14	12	3650	3600	34000
7.8	RNA7.8169			7.8	16	9
8	NK8/12TN		8.3	8	15	12	3950	4100	32000
	NK08/12		8.7	8	15	12	3950	4100	32000
	NK08/16		12	8	15	16	5100	5800	32000
	NK08/16TN			8	15	16	5100	5800	32000
	RNA8X19X9			8	19	9
	RN8X14X8			8	14	8
	RNA496			8	15	10
	RNA8X15X10TN			8	15	10
9	NK09/12		10.3	9	16	12
10	NK10/12TN	462409K	10	10	17	12	4750	5300	29000
		5624097	16.6	10	17	15	4860	7100	29000
	NK10/10			10	17	10
	NK10/12			10	17	12
	NK10/16			10	17	16	6200	7800	29000
	NK10/16TN			10	17	16	6200	7800	29000
	NKS10			10	19	13	5800	6000	29000
12	NK12/12TN	644097	11.8	12	19	12	6000	6400	27000
		5624098	15.4	12	19	15	6400	7100	27000
	NK12/16		16.8	12	19	16	8200	9800	27000
14	NK14/16	4624900K	20.8	14	22	16	10100	11500	25000
	NKS14		27	14	25	16	1400	13800	24000
	RNA4900	4624900	24.4	14	22	13	8500	9000	25000
	RNA6900	6634900	29.1	14	22	22	12800	15600	25000
	NK14/12			14	22	12
	NK14/20			14	22	20	12800	15600	25000
15	NK15/12	644800K	18.5	15	23	12	8600	11000	21000
	RNA152815		31.7	15	28	15	13600	17200	24000
		7948/15	16.1	15	22	12	8200	9800	8500
		644302	18.2	15	25	12	10600	13500	17000
	NK15/16		21.8	15	23	16	10700	12700	24000
	NK15/20		26.7	15	23	20	13600	17200	24000
	NK152312			15	23	12
	NK152512			15	25	12
16	NK16/16		20.8	16	24	16	11300	13900	23000
	NK16/20	624701	23.9	16	24	20	10400	16800	23000
	RNA4901	4624901	16.6	16	24	13	6400	8900	15500
	RNA6901	6634901	28.7	16	24	22	14000	18600	15500
	NKS16		30	16	28	16	14900	15000	20000
	NKl62516			16	25	16
	NKl62616			16	26	16
17	NK17/16	644903K	21.5	17	25	16	9000	13500	14000
	NK17/20	RNAl72520	30	17	25	20	15000	20000	23000
18	NK18/20		30.5	18	26	20	15500	19800	22000
	NK18/16			18	26	16	12500	16200	22000
19	NK19/16			19	27	16	13000	17000	22000
20	NK20/16	644802	25.7	20	28	16	10500	13800	21000
	NK20/20	624802	29.3	20	28	20	11500	21800	21000
	NK202616		20.8	20	26	16	9600	10800	21000
	NK202620			20	26	20	9600	10800	21000
	NKS20		46.8	20	32	20	20000	23000	20000
	NK203312SX		29.1	20	33	12	13000	18000	11000
		6624101	24.3	20	28	25	13000	17490	11000
	RNA4902	4624902	20.5	20	28	13	11000	12900	12000
	RNA6902	6634902	35.4	20	28	23	10800	12800	12000
	NK20/16			20	32	16	13000	25000	12000
	RNA5902			20	28	18
21	NK21/12			21	29	12
	NK21/16			21	29	16	13500	18700	21000
	NK21/20			21	29	20
22	NK22/16	NK223016	29.2	22	30	16	13500	18000	11500
		NK223516	34.6	22	35	16	18600	20800	11500
	NKS22		60.2	22	35	20	21500	25000	17000
	RNA4903	4644903	20.7	22	30	13	12000	16800	16300
	RNA5903			22	30	18
	RNA6903	6634903	39.8	22	30	23	14000	19900	16300
		624703	53	22	35	25	24500	28000	14100
		634704L	42.5	22	30	30	17700	27000	16500
		644704	27.4	22	28	16	10500	15000	16500
		NK223516	49.4	22	35	16	18600	20800	16500
	NK22/20			22	30	20
23		634704KA	37.5	23	30	30	18600	29000	15000
24	NK24/16			24	32	16
	NK24X33.5X7.5			24	33.5	7.5
25	NK25/16	624904	30	25	33	16	12900	20400	15000
	NK25/20	644804	38.4	25	33	20	16800	28500	15000
	RNA4904	4644904	50.8	25	37	17	11900	16500	15000
	RNA6904	6634904	97.7	25	37	30	26000	43000	15000
	NKS25		65	25	38	20	25800	31000	16300
		624704	100.1	25	35	25	14900	22400	16500
	NK25/30	644804K	63	25	33	30	18800	30500	165000
	NK253326			25	33	26
	NK253422			25	34	22
	NK253425			25	34	25
	NK253820			25	38	20
	NK253825			25	38	25
	NK254517.5			25	45	17.5
26	NK26/16		30	26	34	16	15000	23000	16300
	NK26/20		40	26	34	20	17000	30000	16300
27	NK27X40X25			27	40	25
28	RNA283833		99.8	28	38	33	33000	57000	12000
		F3833	99.8	28	38	33	33000	57000	12000
	NKS28		80	28	42	20	25900	33500	15000
	NK28/20		53	28	37	20	22000	34000	16500
	NK28/30			28	37	30	33000	57000	12000
	RNA69/22	63549/22		28	39	30
29	NK29/20			29	38	20	21900	34000	15000
	NK29/30			29	38	30	32500	57000	15000
30	NK30/20	644805	57.9	30	40	20	20600	32000	15000
	NK30/30		95	30	40	30	31500	50000	15000
	RNA4905	4624905	57	30	42	17	23600	31500	14000
	RNA6905	6634905	106.5	30	42	30	39000	59000	14000
		624905	68	30	42	20	20000	32000	15000
	NK304013			30	40	13
	NK304430			30	44	30
	NK304630			30	46	30
	NK305017			30	50	17
	NKS30			30	45	17	32000	40000	14000
	RNA305225			30	52	25
30.5	NK30.5X50X16			30.5	50	16
	NK30.5X50X17			30.5	50	17
31	NK31.75X44.45X31.75			31.75	44.45	22
32	NK32/20	624705	75.4	32	42	20	22600	33500	15000
	RNA49/28	46449/28K	80	32	45	17	17400	30000	13000
	NAS32		100	32	47	22	31000	40000	13000
	RNA69/28		125	32	45	30	39500	61300	13000
		644906	42	32	38	11	10750	30500	12000
		644706	193	32	50	35	40500	63000	12000
	NKS32		100	32	47	22	31000	40000	12000
	NK32/30			32	42	30	33500	60000	12000
	RNA324527			32	45	27
34	NK345034			34	50	34
	NK345035			34	50	35
35	NK35/20	644806	70	35	45	20	13800	26900	12000
	RNA4906	4624906	62.8	35	47	17	17000	30500	12000
	RNA6906	6634906	116	35	47	30	35000	67000	12000
		644907	161	35	51	51	43500	71000	12000
	NK354512			35	45	12
	NK354830			35	48	30
	NK355034			35	50	34
	NK355236			35	52	36
	RNA354527			35	45	27
	RNA5906		108	35	47	23
	RNA355730			35	57	30
	RNA355734			35	57	34
36	NK365225			36	52	25
		624706	154	37	52	22	28500	45500	9000
37	NK37/20			37	47	20	24900	43500	12000
	NK37/30			37	47	30	37000	73000	12000
38	NK38/20			38	48	20	25500	45000	12000
	NK38/30			38	48	30	38000	76000	12000
40	NK40/20		78.9	40	50	20	26500	43000	11000
	NK40/30		120	40	50	30	37490	79000	11000
	NK404815			40	48	15
	NK405530			40	55	30
	NKS40			40	55	22	38000	54000	11000
	RNA49/32			40	52	20
	RNA69/32	66349/32	147	40	52	36	25500	68500	8500
	RNA405422			40	54	22
	RNA40X55X20			40	55	20
42	NK42/20		83	42	52	20	23900	45000	10000
	NK42/30		125	42	52	30	27000	49000	10000
	RNA4907	4624907	99.3	42	55	20	19800	41500	8700
	RNA5907			42	55	27
	RNA6907	6634907	160	42	55	36	26000	60500	8700
		644708	148	42	65	22	31500	51000	8700
	RNA425622			42	56	22
43	NK43/20		84	43	53	20	25700	74900	10000
	NK43/30		126	43	53	30	39000	74900	10000
45	NK45/20	644808	81.5	45	55	20	19800	46500	7650
		624708	75.3	45	55	22	20500	49600	7650
		46449/38	80	45	58	20	21600	50500	7650
	NK45/30			45	55	30	41000	88000	7650
	NKS45			45	60	22	40500	60000	7650
	RNA456227K			45	62	27
47	NK47/20			47	57	20	28500	56000	7650
	NK47/30			47	57	30	43000	94000	7650
48	RNA4908	4644908	132	48	62	22	31000	63000	8120
	RNA5908		225	48	62	30	31000	63000	8120
	RNA6908	6634908	238	48	62	40	64000	112000	8120
50	RNA50/25		167	50	62	25	28000	67000	8140
	RNA50/35		236	50	62	35	32000	70100	8140
		624708K	328	50	65	34	40000	62000	8140
	NK50/14			50	64	14	32000	70100	8140
	NK50/15			50	65	15	40000	62000	8140
	NK50/27YA	644810	257	50	67	27
	NKS50			50	65	22
	NK506825			50	68	25
52	RNA4909	4624909	163	52	68	22	37000	69500	7600
	RNA5909		232	52	68	30
	RNA6909	6634909	308	52	68	40	61500	123500	7600
55	NK55/25		167	55	68	25	30600	60800	7600
		624709	210	55	68	25	36000	68000	7600
	NK55/30			55	68	30	48000	63000	7600
	NK55/35			55	68	35	55000	74000	7600
	NKS55			55	72	22	45000	74000	7600
58	RNA4910	4644910	161	58	72	22	41000	72000	7490
	RNA6910	6634910	296	58	72	40	68000	135000	7490
60	NK60/25		154	60	72	25	39000	86000	7000
	NK60/35			60	72	35	56000	130000	7000
	NKS60			60	80	28	63000	98000	7000
63	RNA4911	4644911	241	63	80	25	50600	96580	7000
	RNA6911	6634911	430	63	80	45	82560	172000	7000
65	NK65/25			65	78	25	44000	98000	7000
	NK65/35			65	78	35	59000	142000	7000
	NKS65			65	85	28	67000	108000	7000
68	RNA4912	4644912	257	68	85	25	52800	91050	7000
	RNA5912	RNA5912	408	68	85	34
	RNA6912	6634912	436	68	85	45	88500	186000	7000
	NK68/25			68	82	25	43500	89000	7000
70	NK70/25			70	85	25	44500	92000	6500
	NK70/35			70	85	35	63000	144000	6500
72	RNA4913	4644913	300	72	90	25	57490	110500	6500
	RNA6913	6634913	571	72	90	45	87600	194500	6500
75	NK75/25		315	75	92	25	54000	104000	6000
	NK75/35		445	75	92	35	77000	162000	6000
80	RNA4914	4644914	400	80	100	30	79000	154000	5500
	RNA6914	6634914	815	80	100	54	121000	263000	5500
	NK80/25			80	95	25
	NK80/35			80	95	35
85	RNA4915	4644915	472	85	105	30	82000	158000	5500
	RNA5915		745	85	105	40
	RNA6915	6634915	923	85	105	54	128000	272000	5500
	NK85/25			85	105	25	69000	123000	5500
	NK85/35			85	105	35	98000	193000	5500
90	RNA4916	4644916	496	90	110	30	81000	170500	5000
	RNA6916	6634916	978	90	110	54	130500	280600	5000
	NK90/35			90	110	30	103000	20800	5000
95	NK95/26			95	115	26	73000	137000	4800
	NK95/36			95	115	36	107000	223000	4800
96		SG-421	496	96	115	29	73000	137000	4600
100	RNA4917	4644917	608	100	120	35	98000	207000	4600
	RNA6917	6634917	1112	100	120	63	161000	337000	4600
	NK100/30			100	120	30
	NK100/36			100	120	36	111000	237000	4600
105	RNA4918	4644918	713	105	125	35	98500	239000	4000
	RNA6918	6634918	1250	105	125	63	174000	38000	4000
	NK105/26			105	125	26	78000	155000	4000
	NK105/36			105	125	36	114000	250000	4000
110	RNA4919	4644919	685	110	130	35	112000	245000	3870
	RNA6919	6634919	1325	110	130	63	196000	400000	3870
	NK110/30			110	130	30	98000	21000	4200
	NK110/40			110	130	40	127000	29000	4200
115	RNA4920	4624920	1006	115	140	40	120000	264000	3700
	NK115/12			115	140	12
	NK115/15			115	140	15
120	NK120/40			120	140	40
125	RNA4922	6634922	1200	125	150	40	124000	270000	3300
135	RNA4924	4644924	1760	135	165	45	174000	386000	2900
160	RNA4928	4644928	2350	160	190	50	200000	460000	2900

TN = plastic safety frame, allowing operating temperature: 120 ºC continuous, 150 ºC temporarily, 180 ºC short-lasting. 1) For grease lubrication, the allowable value tabulated values of 60%. + There are stalls circle, no oil holes and grooves, oil holes and grooves as when required, the need to increase ASR1 on the bearing code.

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Product Categories : Roller Bearing > Needle Roller Bearing