Custom NJ300 Series Cylindrical Roller Bearings Manufacturers, Factory

NJ300 Series

NJ series cylindrical roller bearings are rolling bearings with excellent load-bearing capacity and high rigidity, and are widely used in mechanical engineering and industrial equipment. It adopts a roller structure between the inner ring and the outer ring, which can withstand large radial loads and a certain axial load. The NJ series is characterized by its unique design, which allows the bearings to have lower friction and good wear resistance, thereby extending service life. This series of bearings are usually made of high-quality steel, have good corrosion resistance and high temperature resistance, and are suitable for various harsh working environments. In addition, the NJ series can also be used with other types of bearings to meet different mechanical design needs and provide higher operating accuracy and efficiency. Whether in automobiles, wind turbines or heavy machinery, NJ series cylindrical roller bearings play a vital role.

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Designation	Principal Dimensions(mm)					Basic Load Ratings(KN)		Limited Speed(rpm)		Weight
Designation	d	D	B	rs min	rs1min	Dynamic(Cr)	Static(Cor)	Grease	Oil	(kg)
NJ304E	20	52	15	1.1	0.6	31.5	26.9	13000	15000	0.176
NJ305E	25	62	17	1.1	1.1	41.5	37.5	11000	13000	0.275
NJ306E	30	72	19	1.1	1.1	53	50	9300	11000	0.398
NJ307E	35	80	21	1.5	1.1	71	71	8100	9600	0.545
NJ308	40	90	23	1.5	1.5	58.5	57	8000	9400	0.658
NJ308E	40	90	23	1.5	1.5	83	81.5	7200	8500	0.754
NJ309	45	100	25	1.5	1.5	74	71	7200	8400	0.877
NJ309E	45	100	25	1.5	1.5	97.5	98.5	6500	7600	0.996
NJ310	50	110	27	2	2	87	86	6500	7700	1.14
NJ310E	50	110	27	2	2	110	113	5900	6900	1.3
NJ311	55	120	29	2	2	111	111	5900	7000	1.45
NJ311E	55	120	29	2	2	137	143	5300	6300	1.65
NJ312	60	130	31	2.1	2.1	124	126	5500	6500	1.8
NJ312E	60	130	31	2.1	2.1	150	157	4900	5800	2.05
NJ313	65	140	33	2.1	2.1	135	139	5100	6000	2.23
NJ313E	65	140	33	2.1	2.1	181	191	4600	5400	2.54
NJ314	70	150	35	2.1	2.1	158	168	4700	5500	2.71
NJ314E	70	150	35	2.1	2.1	205	222	4200	5000	3.1
NJ315	75	160	37	2.1	2.1	190	205	4400	5200	3.28
NJ315E	75	160	37	2.1	2.1	240	263	4000	4700	3.74
NJ316	80	170	39	2.1	2.1	190	207	4100	4800	3.86
NJ316E	80	170	39	2.1	2.1	256	282	3700	4400	4.22
NJ317	85	180	41	3	3	212	228	3900	4600	4.54
NJ317E	85	180	41	3	3	291	330	3500	4100	4.81
NJ318	90	190	43	3	3	240	265	3700	4300	5.3
NJ318E	90	190	43	3	3	315	355	3300	3900	5.72
NJ319	95	200	45	3	3	259	285	3400	4000	6.13
NJ319E	95	200	45	3	3	335	385	3100	3600	6.62
NJ320	100	215	47	3	3	299	335	3300	3800	7.49
NJ320E	100	215	47	3	3	380	425	2900	3500	8.57
NJ321	105	225	49	3	3	320	360	3100	3700	8.53
NJ322	110	240	50	3	3	360	400	3000	3500	10
NJ322E	110	240	50	3	3	450	525	2700	3100	11.1
NJ324	120	260	55	3	3	450	510	2700	3200	12.8
NJ324E	120	260	55	3	3	530	610	2400	2800	13.9
NJ326	130	280	58	4	4	560	665	2500	2900	17.4
NJ326E	130	280	58	4	4	615	735	2200	2600	19.4
NJ328	140	300	62	4	4	615	745	2300	2700	21.2
NJ328E	140	300	62	4	4	665	795	2100	2400	23.2
NJ330	150	320	65	4	4	665	805	2100	2500	25.3
NJ330E	150	320	65	4	4	760	920	1900	2300	28.4

NJ300 Series

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