Double row non-locating bearing d 30-360mm-High precision cylindrical roller bearing--NEY（DuangDong）Bearing Industry Co.,LTD

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Double row non-locating bearing d 30-360mm

Product Parameter

Designation	Mass/ m ≈kg	Principal dimensions mm									Fitting dimansion mm				Basic load ratings KN		Fatigue limit load Cur/ N	Speed ratings rpm
Designation	Mass/ m ≈kg	d	D	B	r min	s¹⁾	E	d₁ ≈	d_s	n_s	d_a min	D_a max	D_b min	r_a max	Dyc C_r	Stc C_or	Fatigue limit load Cur/ N	n_GGrease min^–1	n_GOil min^–1
NN3018-AS-K-M-SP	2.05	90	140	37	1.5	2.5	127	109.4	3.2	6.5	98	132	129	1.5	140000	224000	36000	5600	6700
NN3019-AS-K-M-SP	2.14	95	145	37	1.5	2.5	132	114.4	3.2	6.5	103	137	134	1.5	143000	236000	37000	5300	6300
NN3020-AS-K-M-SP	2.23	100	150	37	1.5	2.5	137	119.4	3.2	6.5	108	142	139	1.5	146000	245000	38000	5300	6300
NN3021-AS-K-M-SP	2.84	105	160	41	2	2.6	146	125.2	3.2	6.5	114	151	148	2	190000	310000	46000	4800	5600
NN3022-AS-K-M-SP	3.61	110	170	45	2	2.9	155	132.6	3.2	6.5	119	161	157	2	220000	360000	54000	4500	5300
NN3024-AS-K-M-SP	3.94	120	180	46	2	3.1	165	142.6	3.2	6.5	129	171	167	2	232000	390000	57000	4300	5000
NN3026-AS-K-M-SP	5.79	130	200	52	2	3.4	182	156.4	4.8	9.5	139	191	184	2	290000	500000	72000	3800	4500
NN3028-AS-K-M-SP	6.22	140	210	53	2	3.4	192	166.4	4.8	9.5	149	201	194	2	300000	520000	74000	3600	4300
NN3030-AS-K-M-SP	7.58	150	225	56	2.1	3.7	206	178.8	4.8	9.5	160	215	208	2.1	335000	585000	83000	3400	4000
NN3032-AS-K-M-SP	9.23	160	240	60	2.1	4.2	219	190.2	4.8	9.5	170	230	222	2.1	375000	670000	93000	3200	3800
NN3034-AS-K-M-SP	12.5	170	260	67	2.1	4.5	236	204	4.8	9.5	180	250	239	2.1	450000	800000	111000	3000	3600
NN3036-AS-K-M-SP	16.4	180	280	74	2.1	4.8	255	218.2	6.3	12.2	190	270	258	2.1	570000	1000000	134000	2800	3400

Introduction

features

cylindrical roller bearing with cage has good rigidity and can bear high radial load, and because of the cage, this kind of bearing is more suitable for high-speed situation compared with full design bearing. The bearing with suffix e has higher optimized bearing capacity, so it is suitable for higher load conditions.

one ring of this kind of bearing can be separated for easy installation and disassembly. The inner and outer rings can be tightly matched.

single row cylindrical roller bearing with cage can be used as non positioning, semi positioning and positioning bearing.

we can provide a variety of sizes of X-life grade bearings. These bearings are identified in the dimension table.

compared with non X-life bearings, the raceways of X-life bearings have smaller surface roughness Ra and higher geometric accuracy. Therefore, the X-life bearing of the same size has higher bearing capacity and longer life. In some applications, this means smaller bearings can be used.

floating bearing

n and Nu cylindrical roller bearings are floating bearings and can only bear radial force.

Nu type bearing outer ring with two flange, inner ring without flange. The inner ring of n type bearing has two stops, and the outer ring has no stops.

semi positioning bearing

NJ cylindrical roller bearing is semi positioning bearing. Half locating bearing can not only bear high radial load, but also bear unidirectional axial load, so it can locate the shaft in one direction. In the other direction, it can be used as floating bearing. This type of bearing has two stops on the outer ring and one stop on the inner ring.

Nu type floating bearing can be combined with a L type inclined retaining ring HJ to form a half locating bearing unit. However, it is not allowed to use two L inclined retaining rings at the same time ( there is a risk of jamming ) .

the relative axial displacement of the inner and outer rings in one direction is' s ', and the specific values are shown in the size table.

NUP and L inclined retaining ring HJ are positioning bearings.

positioning bearing can not only bear radial force, but also bear bidirectional axial force, so it can realize bidirectional axial positioning of shaft.

NUP the outer ring of cylindrical roller bearing type ' > has two stops, one side of the inner ring has a rigid stop, the other side has a flat retaining ring.

NJ type bearing can be combined with a L type inclined retaining ring HJ to form a positioning bearing unit. The outer ring of this bearing unit has two stops, and the inner ring has one stop, L inclined retaining ring is installed on the side of the inner ring without stop. For the parameters of NJ type bearing, L type inclined retaining ring HJ see the dimension table. Bearings and inclined retaining rings of type L need to be ordered separately.

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