Needle Bearing NA Series

Needle roller bearing NA series introduction

The needle roller bearing NA series, also known as the solid ferrule needle roller bearing, consists of one or two ferrules and a needle roller set with a cage. Depending on the application, it can be divided into bearings with or without inner ring. Therefore, the physical ferrule needle roller bearing can meet the requirements of light weight, small space occupation and large transmission power. Solid ferrule needle bearings have a small volume and high load carrying capacity.

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Needle bearing：HK… series，K… series，NA… series

Needle roller bearing NA series suffix symbol

Subject	Symbol	Description
Seal type	ZZ	Metal shields on both sides.
	2RS	Rubber seals on both sides.
	Z	Metal shield on one side.
	RS	Rubber seal on one side.

Needle roller bearing NA series structure diagram

Needle roller bearing NA series model list and dimensions

NA49 series

Bearing Number	Nominal Bearing Dimensions(mm)				Bearing Weight （kg）
Bearing Number	d	Fw	D	C	Bearing Weight （kg）
NA4900	10	14	22	13	0.0240
NA4900 2RS	10	14	14	22	0.0245
NA4901	12	16	24	13	0.0265
NA4901 2RS	12	16	14	24	0.0275
NA4902	15	20	28	13	0.0360
NA4902 2RS	15	20	14	28	0.0360
NA4903	17	22	30	13	0.0370
NA4903 2RS	17	22	14	30	0.0395
NA4904	20	25	37	17	0.0740
NA4904 2RS	20	25	18	37	0.0785
NA49/22	22	28	39	17	0.0800
NA49/22 2RS	22	28	18	39	0.0875
NA4905	25	30	42	17	0.0880
NA4905 2RS	25	30	18	42	0.0925
NA49/28	28	32	45	17	0.0980
NA49/28 2RS	28	32	18	45	0.101
NA4906	30	35	47	17	0.101
NA4906 2RS	30	35	18	47	0.106
NA49/32	32	40	52	20	0.157
NA49/32 2RS	32	40	21	52	0.167
NA4907	35	42	55	20	0.171
NA4907 2RS	35	42	21	55	0.179
NA4908	40	48	62	22	0.232
NA4908 2RS	40	48	23	62	0.245
NA4909	45	52	68	22	0.232
NA4909 2RS	45	52	23	68	0.290
NA4910	50	58	72	22	0.276
NA4910 2RS	50	58	23	72	0.295
NA4911	55	63	80	25	0.396
NA4911 2RS	55	63	26	80	0.415
NA4912	60	68	85	25	0.427
NA4912 2RS	60	68	26	85	0.445
NA4913	65	72	90	25	0.454
NA4913 2RS	65	72	26	90	0.475
NA4914	70	80	100	30	0.727
NA4914 2RS	70	80	31	100	0.770
NA4915	75	85	105	30	0.776
NA4915 2RS	75	85	31	105	0.815
NA4916	80	90	110	30	0.820
NA4916 2RS	80	90	31	110	0.860
NA4917	85	100	120	35	1.240
NA4917 2RS	85	100	36	120	1.300
NA4918	90	105	125	35	1.310
NA4918 2RS	90	105	36	125	1.360
NA4919	95	110	130	35	1.360
NA4919 2RS	95	110	36	130	1.420
NA4920	100	115	140	40	1.930
NA4920 2RS	100	115	41	140	1.980
NA4922	110	125	150	40	2.080
NA4922 2RS	110	125	41	150	2.150
NA4924	120	135	165	45	2.840
NA4924 2RS	120	135	46	165	2.990
NA4926	130	150	180	50	3.900
NA4926 2RS	130	150	51	180	4.080
NA4928	140	160	190	50	4.050
NA4928 2RS	140	160	51	190	4.340
NA4930	150	170	210	60	6.380
NA4932	160	180	220	60	6.750
NA4934	170	190	230	60	7.110
NA4936	180	205	250	69	10.200
NA4938	190	215	260	69	10.700
NA4940	200	225	280	80	15.400
NA4944	220	245	300	80	16.700
NA4948	240	265	320	80	18.000
NA4952	260	290	360	100	31.100
NA4956	280	310	380	100	33.100
NA4960	300	340	420	118	51.400
NA4964	320	360	440	118	54.400
NA4968	340	380	460	118	57.300
NA4972	360	400	480	118	60.200
NA4976	380	430	520	140	90.300
NA4980	400	450	540	140	94.400
NA4984	420	470	560	140	98.500
NA4988	440	490	600	160	131.00

NA69 series

Bearing Number	Nominal Bearing Dimensions(mm)				Bearing Weight （kg）
Bearing Number	d	Fw	D	C	Bearing Weight （kg）
NA6901	12	16	24	22	0.046
NA6901 2RS	12	16	23	24	0.0455
NA6902	15	20	28	23	0.064
NA6902 2RS	15	20	24	28	0.0625
NA6903	17	22	30	23	0.069
NA6903 2RS	17	22	24	30	0.0685
NA6904	20	25	37	30	0.141
NA6904 2RS	20	25	31	37	0.137
NA69/22	22	28	39	30	0.154
NA69/22 2RS	22	28	31	39	0.153
NA6905	25	30	42	30	0.162
NA6905 2RS	25	30	31	42	0.162
NA69/28	28	32	45	30	0.179
NA69/28 2RS	28	32	31	45	0.177
NA6906	30	35	47	30	0.185
NA6906 2RS	30	35	31	47	0.185
NA69/32	32	40	52	36	0.286
NA69/32 2RS	32	40	37	52	0.300
NA6907	35	42	55	36	0.310
NA6907 2RS	35	42	37	55	0.320
NA6908	40	48	62	40	0.426
NA6908 2RS	40	48	41	62	0.440
NA6909	45	52	68	40	0.437
NA6909 2RS	45	52	41	68	0.520
NA6910	50	58	72	40	0.529
NA6910 2RS	50	58	41	72	0.530
NA6911	55	63	80	45	0.726
NA6911 2RS	55	63	46	80	0.730
NA6912	60	68	85	45	0.758
NA6912 2RS	60	68	46	85	0.785
NA6913	65	72	90	45	0.779
NA6913 2RS	65	72	46	90	0.845
NA6914	70	80	100	54	1.340
NA6914 2RS	70	80	55	100	1.400
NA6915	75	85	105	54	1.450
NA6915 2RS	75	85	55	105	1.480
NA6916	80	90	110	54	1.530
NA6916 2RS	80	90	55	110	1.570
NA6917	85	100	120	63	2.250
NA6917 2RS	85	100	64	120	2.360
NA6918	90	105	125	63	2.440
NA6918 2RS	90	105	64	125	2.480
NA6919	95	110	130	63	2.630
NA6919 2RS	95	110	64	130	2.600

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