Heavy duty needle roller bearings

Heavy duty needle roller bearings are bearings with a low sectional height and large load ratings. The outer ring has high rigidity and can easily be used even for light alloy housings.

DESCRIPTION

Heavy duty needle roller bearings are bearings with a low sectional height and large load ratings. The outer ring has high rigidity and can easily be used even for light alloy housings.

Heavy duty needle roller bearings have a machined and ground channel-shaped outer ring with a complement of needle rollers retained and guided by a cage. The thick outer ring provides maximum load capacity and shock resistance with a relatively small radial cross section. With the high-strength cage retaining and guiding the rollers, this design provides high speed and lubrication retention capability. The assembled G2 grade needle roller has a diameter variation of less than 2μm in groups. In addition to fully loaded needle bearing, all adopt high rigidity cage, which can correctly guide the needle parallel to the axis.

These bearings can be used under various conditions such as heavy loads and high-speed or low-speed rotations. In addition, there are bearings with and without an inner ring. They are applied in automobile steering gear, air conditioner compressor, textile machines, engineering machine, power tools, etc.

Structure:	NK NKS	Heavy duty needle roller bearing without inner ring
	NA49 RNA49	Heavy duty needle roller bearing, 49 series
	NA69 RNA69	Heavy duty needle roller bearing, 69 series
	NKI NKIS	Heavy duty needle roller bearing with inner ring
	NAO RNAO	Heavy duty needle roller bearing of outer ring without flange
	NAV RANV	Heavy duty full complement needle roller bearing

Shaft Diameter	Bearing Designation			Mass Approx			Boundary Dimenisions										Basic Load Rating					Limiting Speed
	Current	Original Code					Fw			D			C				Cr Dynamic			Cor Static		Oil
mm				g			mm										N					rpm
5	NK5/ 10TN			2.9			5			10			10				2100			1400		36780
8	NK8/ 12TN			8.3			8			15			12				3050			3650		29112
10	NK10/ 12TN	4624097K		10			10			17			12				4750			5350		23500
		5624097		16.6			10			17			15				4786			7100		23500
12	NK12/ 12	644078		11.8			12			19			12				6050			6400		21640
		5624098		15.4			12			19			15				6400			7100		21640
	NK12/ 16			16.8			12			19			16				8200			9800		21640
14	NK14/ 16	4624900K		20.8			14			22			16				8260			9600		18322
	NKS14			27			14			25			16				10400			10800		17652
	RNA4900	4624900		24.4			14			22			13				8060			9000		18322
	RNA6900	6634900		29.1			14			22			22				8281			11612		18322
15	NK15/ 12	644800K		18.5			15			23			12				8600			10070		21004
		7948/ 15		16.1			15			22			12				8200			9800		8412
		644302		18.2			15			25			12				10600			13500		17144
16	NK16/ 16			20.8			16			24			16				9030			11900		15522
	NK16/20	624701		23.9			16			24			20				10400			16800		15522
	RNA4901	4624901		16.6			16			24			13				6400			8900		15522
	RNA6901	6634901		28.7			16			24			22				14000			18600		15522
	NKS16			30			16			28			16				14900			15000		20000
17	NK17/ 16	644903K		21.5			17			25			16				9000			13500		14163
18	NK18/20			30.5			18			26			20				10500			13800		13628
20	NK20/ 16	644802		25.7			20			28			16				11500			13400		12716
	NK202616			20.8			20			26			16				9600			10800		9125
	NKS20			46.8			20			32			20				20000			22000		18000
		6624101		24.3			20			28			25				11000			12900		12716
	RNA4902	4624902		20.5			20			28			13				10800			12800		12716
	RNA6902	6634902		35.4			20			28			23				13000			25000		12716
22	NK22/ 16	NK223016		29.2			22			30			16				13500			18000		11527
		NK223516		34.6			22			35			16				18600			20800		12711
	NKS22			60.2			22			35			20				21500			25000		17000
	RNA4903	4644903		20.7			22			30			13				12000			16800		16300
	RNA6903	6634903		39.8			22			30			23				14000			19900		16300
		624703		53			22			35			25				24500			28000		14187
		6634903		27.4			22			28			16				10500			15050		15172
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				11912			16594		14060
	RNA6904	6634904		97.7			25			37			30				26000			43000		14060
	NKS25			65			25			38			20				25800			31000		16300
		624704		100.1			25			35			25				14900			22400		14060
		644804K		63			25			33			30				18800			30500		14060
26	NK26/ 16			30			26			34			16				15000			23000		16300
	NK25/20			40			26			34			20				17000			30000		16300
28		F3833		99.8			28			38			33				33000			57000		12000
28	NKS28				80			28			42			20		25900			33500				14600
30	NK30/20	644805			57.9			30			40			20		20600			32000				12066
	NK30/20				95			30			40			30		31500			50000				14500
	RNA4905	4624905			57			30			42			17		13452			20475				12066
	RNA6905	6634905			106.5			30			42			30		26300			31750				12066
		624905K			68			30			42			20		15400			24500				12066
32	NK32/20	624705			75.4			32			42			20		17500			33500				12066
	RNA49/28	46449/32K			80			32			45			17		17400			30050				12000
	NKS32				100			32			47			22		31000			40000				12100
	RNA69/28				125			32			45			30		39500			61300				13100
		644906			42			32			38			11		10750			30500				12000
		644706			193			32			50			35		40500			63000				12000
35	NK35/20	644806			70			35			45			20		13851			26900				12000
	RNA4906	4524906			62.8			35			47			17		17000			30500				12000
	RNA6906	6634906			116			35			47			30		35000			67000				12000
		644907			161			35			51			32		43500			71000				11680
37		624706			154			37			52			22		28500			45500				9027
40	NK40/20				78.9			40			50			20		19600			43000				8881
	NK40/30				120			40			50			30		22200			513500				8881
	RNA69/32	66349/32			147			40			52			36		25500			68500				8881
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				8710
	RNA6907	6634907			160			42			55			36		26000			60500				8710
		644708			148			42			65			22		31500			51000				8710
43	NK43/20				126			43			53			30		39000			75000				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
48	RNA4908	4644908			132			48			62			22		21036			63873				8120
	RNA6908	6634908			238			48			62			40		64000			112000				8120
50	NK50/25				167			50			62			25		28000			67000				8140
	NK50/35				236			50			62			35		32000			70100				8140
		624708K			328			50			65			34		40000			62000				8140
52	RNA4909	4624909			163			52			68			22		37000			69500				7625
	RNA6909	6634909			308			52			68			40		61500			123500				7625
55	NK55/25				167			55			68			25		30600			60800				7625
		624709			210			55			68			25		36000			60800				7625
58	RNA4910	4644910			131			58			72			22		41000			72000				7500
	RNA6910	6634910			296			58			72			40		68000			135000				7500
60	NK60/25				154			60			72			25		39000			86000				7000
63	RNA4911	4644911			241			63			80			25		50600			96580				6340
	RNA6911	6634911			430			63			80			45		82560			127000				6340
68	RNA4912	4644912			457			68			85			25		52800			91050				6100
	RNA6912	6634912	436			68			85			45			88500			186000			6100
72	RNA4913	4644913	300			72			90			25			57500			110500			6100
	RNA6912	6634913	571			72			90			45			87600			194500			6100
80	RNA6913	4644914	400			82			100			30			79000			154000			5130
	RNA4914	6634914	815			82			100			54			121000			263000			5130
85	RNA4915	4644915	472			85			105			30			82000			158000			5130
	RNA6915	6634915	923			85			105			54			128000			272000			5130
90	RNA4916	4644916	496			90			110			29			81000			170500			4927
	RNA6916	6634916	978			90			110			35			130500			280600			4927
96		SG-421	496			96			115			63			73000			137000			4600
100	RNA4917	4644917	908			100			120			35			98000			207000			4600
	RNA6917	6634917	1112			100			120			63			161000			337000			4600
105	RNA4918	4644918	713			102			125			35			98500			239000			4000
	RNA6918	6634918	1250			105			125			63			174000			380000			4000
110	RNA4919	4644919	685			110			130			35			112000			245000			3870
	RNA6919	6634919	1325			110			130			63			196000			400000			3870
115	RNA4920	4624920	1006			115			140			40			120000			264000			3710
125	RNA4922	6634922	1200			125			150			40			124000			270000			3350
135	RNA4924	4644924	1760			135			165			45			174000			386000			2920

Heavy Duty Full Complement Needle Roller Bearings

Shaft Diameter	Bearing Designation		Mass Approx	Boundary Dimensions			Basic Load Rating		Limiting Speed
Shaft Diameter	Current	Original Code	Mass Approx	Fw	D	C	Cr Dynamic	Cor Static	Oil
mm	Current	Original Code	g	mm			N		rpm
Without inner ring
21.87	RNAV 4002	4084102	45	21.87	32	17	10800	29800	4500
24.3	RNAV 4003	4084103	62	24.3	35	18	17900	37900	4300
28.7	RNAV 4004	4084104	114	28.7	42	22	28150	60900	3900
33.5	RNAV 4005	4084105	129	33.5	47	22	22800	70800	3700
40.1	RNAV 4006	4084106	193	40.1	55	25	49900	96500	3500
45.9	RNAV 4007	4084107	259	45.9	62	27	47600	122800	3100
51.6	RNAV 4008	4084108	304	51.6	68	28	49900	137900	2700
57,4	RNAV 4009	4084109	390	57.4	75	30	52500	153500	2600
62.1	RNAV 4010	4084110	426	62.1	80	30	55700	166000	2500
69.8	RNAV 4011	4084111	645	69.8	90	35	68500	225800	2300
74.6	RNAV 4012	4084112	677	74.6	95	35	75400	239000	2100
80.3	RNAV 4013	4084113	692	80.3	100	35	79500	256900	1900
88	RNAV 4014	4084114	950	88	110	40	98800	354900	1700
92.7	RNAV 4015	4084115	1000	92.7	115	45	101800	372900	1600
100.3	RNAV 4016	4084116	1400	100.3	125	45	102900	373500	1 500
104.8	RNAV 4017	4084117	1540	104.8	130	45	103800	374800	1400
With inner ring
15	NAV 4002	4074102	76	15	32	17	10800	29800	4500
17	NAV 4003	4074103	94	17	35	18	1700	37900	4300
20	NAV 4004	4074104	170	20	42	22	28150	60900	3900
25	NAV 4005	4074105	195	25	47	22	33800	70800	3700
30	NAV 4006	4074106	299	30	55	25	49900	96500	3500
35	NAV 4007	4074107	402	35	62	27	47600	122800	3100
40	NAV 4008	4074108	482	40	68	28	49900	137900	2700
45	NAV 4009	4074109	617	45	75	30	52500	153500	2600
50	NAV 4010	4074110	669	50	80	30	55700	166000	2500
55	NAV 4011	4074111	1030	55	90	35	68500	225800	2300
60	NAV 4012	4074112	1087	60	95	35	75400	239000	2100
65	NAV 4013	4074113	1156	65	100	35	79500	256900	1900
70	NAV 4014	4074114	1666	70	110	40	98800	354900	1700
75	NAV 4015	4074115	1762	75	115	45	101800	372900	1600
80	NAV 4016	4074116	2450	80	125	45	102900	373500	1500
85	NAV 4017	4074117	2500	85	130	45	103800	374800	1400
17		74703	126	17	35	24.5	8700	10800	4200
15		74802	100	15	36	24.5	8900	11200	4400