Cylindrical Roller Bearings Nu204e Nj204e NF204e Nup204e for Agricultural and Heavy Machinery

• Rolling Body: Roller Bearings
• The Number of Rows: Single
• Outer Dimension: Small (28-55mm)
• Model NO.: NU204E NJ204E NF204E NUP204E
• Material: Bearing Steel
• Spherical: Non-Aligning Bearings
• Load Direction: Radial Bearing
• Separated: Separated
• Lubrication: Grease or Oil
• Transport Package: Industrial Packing or Individual Packing
• Specification: 20*47*14mm
• Trademark: CooU/OEM/NEUTRAL
• Origin: China
• HS Code: 8482400090
• Production Capacity: 10000 PCS/Month

Product Description

Cylindrical roller bearings have cylindrical rollers as their rolling elements and are separable bearings, which facilitate installation and disassembly. According to whether the rings have flanges or not, they can be classified into single-row cylindrical roller bearings such as N, NU, NJ, NF, and NUP, as well as double-row cylindrical roller bearings such as NNU and NN.

In addition, there are multi-row cylindrical roller bearings. Cylindrical roller bearings generally use solid cages made of copper alloy or engineering plastic cages. When the rotational speed is low and the load is large, they can be designed as full roller structures without cages.

The rollers and raceways of cylindrical roller bearings have a line contact, and they have a large load capacity, mainly bearing radial loads. The friction between the rolling elements and the flange of the ring is small, making it suitable for high-speed rotation. During use, a relatively high coaxiality is required. Cylindrical roller bearings with no flanges on either the inner or outer ring can have their inner and outer rings move relatively in the axial direction, so they can be used as free-end bearings. Cylindrical roller bearings with double flanges on one side of the inner and outer rings and a single flange on the other side of the ring can withstand a certain degree of unidirectional axial load.

N type
The outer ring of the N-type bearing has no flanges, while the inner ring has flanges on both sides, which allows the shaft to move in both axial directions relative to the bearing housing.

NU type
The outer ring of the NU-type bearing has flanges on both sides, but the inner ring has no flanges. It can also allow the displacement of the shaft relative to the bearing housing in both axial directions. Therefore, this type of structure is suitable for use as a floating end bearing.

NJ type
The outer ring of the NJ type bearing has flanges on both sides, and the inner ring has flanges on one side. It can withstand a certain amount of unidirectional axial load.

NF type
The outer ring of the NF type has flanges on one side, and the inner ring has flanges on both sides. It can also withstand a certain amount of unidirectional axial load. Therefore, this type of structure is suitable for use as a unidirectional axial positioning bearing

NUP type
The NUP type bearing has flanges on both sides of the outer ring, a fixed single flange on one side of the inner ring, and a detachable flat retaining ring on the other side, which can withstand a certain amount of bidirectional axial load.

NN type
The outer ring of the NN type bearing has no flanges, while the inner ring has flanges on both sides and a middle flange, which allows the shaft to have two-direction axial displacement relative to the bearing housing.

NNU type
The outer ring of the NNU type bearing has flanges on both sides and a middle flange in the middle, while the inner ring has no flanges. It is allowed for the shaft to generate displacements in two axial directions relative to the bearing housing. Therefore, this type of structure is suitable for use as a floating end bearing.

Product Features
The inner ring or outer ring can be separated, which is convenient for installation and disassembly.
It has a large radial load-bearing capacity and is suitable for withstanding heavy loads and impact loads.
It has a low coefficient of friction, is suitable for high speed, and its limiting speed is close to that of deep groove ball bearings.
The N type and NU type can move axially and can be used as free-end supports.
The processing requirements for the shaft or seat hole are relatively high. Relative skew should be prevented to avoid contact stress concentration.

Application Fields
Large and medium-sized electric motors, locomotive vehicles, machine tool spindles, internal combustion engines, generators, gas turbines, reducers, steel rolling mills, vibrating screens, and lifting and transportation machinery, etc.

Bearing No.	Principal Dimensions(mm)					Limited Speed(rpm)		Weight (kg)
	d	D	B	rs min	rs1 min
						Grease	Oil
NUP204E	20	47	14	1	0.6	15000	18000	0.122
NUP205E	25	52	15	1	0.6	13000	15000	0.151
NUP206E	30	62	16	1	0.6	11000	13000	0.226
NUP207E	35	72	17	1.1	0.6	9500	11000	0.327
NUP208	40	80	18	1.1	1.1	9400	11000	0.378
NUP208E	40	80	18	1.1	1.1	8500	10000	0.426
NUP209	45	85	19	1.1	1.1	8400	9900	0.432
NUP209E	45	85	19	1.1	1.1	7600	9000	0.495
NUP210	50	90	20	1.1	1.1	7600	9000	0.47
NUP210E	50	90	20	1.1	1.1	6900	8100	0.54
NUP211	55	100	21	1.5	1.1	6900	8200	0.638
NUP211E	55	100	21	1.5	1.1	6300	7400	0.718
NUP212	60	110	22	1.5	1.5	6400	7600	0.818
NUP212E	60	110	22	1.5	1.5	5800	6800	0.923
NUP213	65	120	23	1.5	1.5	5900	7000	1.02
NUP213E	65	120	23	1.5	1.5	5400	6300	1.21
NUP214	70	125	24	1.5	1.5	5500	6500	1.12
NUP214E	70	125	24	1.5	1.5	5000	5900	1.3
NUP215	75	130	25	1.5	1.5	5100	6000	1.23
NUP215E	75	130	25	1.5	1.5	4700	5500	1.41
NUP216	80	140	26	2	2	4800	5700	1.5
NUP216E	80	140	26	2	2	4400	5100	1.67
NUP217	85	150	28	2	2	4500	5300	1.87
NUP217E	85	150	28	2	2	4100	4800	2.11
NUP218	90	160	30	2	2	4300	5000	2.3
NUP218E	90	160	30	2	2	3900	4600	2.44
NUP219	95	170	32	2.1	2.1	4000	4700	2.78
NUP219E	95	170	32	2.1	2.1	3600	4300	3.02
NUP220	100	180	34	2.1	2.1	3800	4500	3.33
NUP220E	100	180	34	2.1	2.1	3500	4100	3.66
NUP221	105	190	36	2.1	2.1	3600	4300	3.95
NUP222	110	200	38	2.1	2.1	3400	4000	4.63
NUP222E	110	200	38	2.1	2.1	3100	3700	4.27
NUP224	120	215	40	2.1	2.1	3200	3700	5.57
NUP224E	120	215	40	2.1	2.1	2900	3400	5.97
NUP226	130	230	40	3	3	2900	3400	6.3
NUP226E	130	230	40	3	3	2600	3100	6.9
NUP228	140	250	42	3	3	2700	3100	7.88
NUP228E	140	250	42	3	3	2400	2800	8.73
NUP230	150	270	45	3	3	2500	2900	9.92
NUP230E	150	270	45	3	3	2200	2600	11

No.		Type			BD	OD	Width	Weight
NU	N	NF	NJ	NUP	(mm)	(mm)	(mm)	(kg)
NU2204E	N2204E	NF2204E	NJ2204E	NUP2204E	20	47	18	0.149
NU2304E	N2304E	NF2304E	NJ2304E	NUP2304E	20	52	21	0.216
NU205E	N205E	NF205E	NJ205E	NUP205E	25	52	15	0.14
NU2205E	N2205E	NF2205E	NJ2205E	NUP2205E	25	52	18	0.168
NU2305E	N2305E	NF2305E	NJ2305E	NUP2305E	25	62	24	0.355
NU206E	N206E	NF206E	NJ206E	NUP206E	30	62	16	0.214
NU2206E	N2206E	NF2206E	NJ2206E	NUP2206E	30	62	20	0.268
NU2306E	N2306E	NF2306E	NJ2306E	NUP2306E	30	72	27	0.538
NU207E	N207E	NF207E	NJ207E	NUP207E	35	72	17	0.311
NU2207E	N2207E	NF2207E	NJ2207E	NUP2207E	35	72	23	0.414
NU2307E	N2307E	NF2307E	NJ2307E	NUP2307E	35	80	31	0.738
NU208E	N208E	NF208E	NJ208E	NUP208E	40	80	18	0.394
NU2208E	N2208E	NF2208E	NJ2208E	NUP2208E	40	80	23	0.507
NU2308E	N2308E	NF2308E	NJ2308E	NUP2308E	40	90	33	0.974
NU209E	N209E	NF209E	NJ209E	NUP209E	45	85	19	0.45
NU2209E	N2209E	NF2209E	NJ2209E	NUP2209E	45	85	23	0.55
NU2309E	N2309E	NF2309E	NJ2309E	NUP2309E	45	100	36	1.34
NU210E	N210E	NF210E	NJ210E	NUP210E	50	90	20	0.505
NU2210E	N2210E	NF2210E	NJ2210E	NUP2210E	50	90	23	0.59
NU2310E	N2310E	NF2310E	NJ2310E	NUP2310E	50	110	40	1.79
NU211E	N211E	NF211E	NJ211E	NUP211E	55	100	21	0.68
NU2311E	N2311E	NF2311E	NJ2311E	NUP2311E	55	120	43	2.28
NU212E	N212E	NF212E	NJ212E	NUP212E	60	110	22	0.86
NU2212E	N2212E	NF2212E	NJ2212E	NUP2212E	60	110	28	1.12
NU2312E	N2312E	NF2312E	NJ2312E	NUP2312E	60	130	46	2.81
NU213E	N213E	NF213E	NJ213E	NUP213E	65	120	23	1.08
NU2213E	N2213E	NF2213E	NJ2213E	NUP2213E	65	120	31	1.48
NU2313E	N2313E	NF2313E	NJ2313E	NUP2313E	65	140	48	3.34
NU214E	N214E	NF214E	NJ214E	NUP214E	70	125	24	1.2
NU2214E	N2214E	NF2214E	NJ2214E	NUP2214E	70	125	31	1.56
NU2314E	N2314E	NF2314E	NJ2314E	NUP2314E	70	150	51	4.1
NU215E	N215E	NF215E	NJ215E	NUP215E	75	130	25	1.32
NU2215E	N2215E	NF2215E	NJ2215E	NUP2215E	75	130	31	1.64
NU2315	N2315	NF2315	NJ2315	NUP2315	75	160	55	5.4
NU216E	N216E	NF216E	NJ216E	NUP216E	80	140	26	1.58
NU2216E	N2216E	NF2216E	NJ2216E	NUP2216E	80	140	33	2.05
NU2316	N2316	NF2316	NJ2316	NUP2316	80	170	58	6.4
NU217E	N217E	NF217E	NJ217E	NUP217E	85	150	28	2
NU2217E	N2217E	NF2217E	NJ2217E	NUP2217E	85	150	36	2.58
NU2317	N2317	NF2317	NJ2317	NUP2317	85	180	60	7.4
NU218E	N218E	NF218E	NJ218E	NUP218E	90	160	30	2.44
NU2218E	N2218E	NF2218E	NJ2218E	NUP2218E	90	160	40	3.26
NU2318	N2318	NF2318	NJ2318	NUP2318	90	190	64	8.4
NU219E	N219E	NF219E	NJ219E	NUP219E	95	170	32	2.96
NU2219E	N2219E	NF2219E	NJ2219E	NUP2219E	95	170	43	3.97
NU2319	N2319	NF2319	NJ2319	NUP2319	95	200	67	10.4
NU220E	N220E	NF220E	NJ220E	NUP220E	100	180	34	3.58
NU2220E	N2220E	NF2220E	NJ2220E	NUP2220E	100	180	46	4.86
NU2320	N2320	NF2320	NJ2320	NUP2320	100	215	73	13.5
NU221	N221	NF221	NJ221	NUP221	105	190	36	4
NU222E	N222E	NF222E	NJ222E	NUP222E	110	200	38	5.02
NU2222	N2222	NF2222	NJ2222	NUP2222	110	200	53	7.5
NU2322	N2322	NF2322	NJ2322	NUP2322	110	240	80	17.5
NU224E	N224E	NF224E	NJ224E	NUP224E	120	215	40	6.11
NU2224	N2224	NF2224	NJ2224	NUP2224	120	215	58	9.5
NU2324	N2324	NF2324	NJ2324	NUP2324	120	260	86	22.5
NU226	N226	NF226	NJ226	NUP226	130	230	40	7
NU2226	N2226	NF2226	NJ2226	NUP2226	130	230	64	11.5
NU2326	N2326	NF2326	NJ2326	NUP2326	130	280	93	28.5
NU228	N228	NF228	NJ228	NUP228	140	250	42	9.1
NU2228	N2228	NF2228	NJ2228	NUP2228	140	250	68	15
NU2328	N2328	NF2328	NJ2328	NUP2328	140	300	102	37
NU230	N230	NF230	NJ230	NUP230	150	270	45	11
NU2230	N2230	NF2230	NJ2230	NUP2230	150	270	73	17
NU2330	N2330	NF2330	NJ2330	NUP2330	150	320	108	45
NU232	N232	NF232	NJ232	NUP232	160	290	48	14
NU2232	N2232	NF2232	NJ2232	NUP2232	160	290	80	25
NU2332	N2332	NF2332	NJ2332	NUP2332	160	340	114	55.8
NU234	N234	NF234	NJ234	NUP234	170	310	52	17.1
NU2334	N2334	NF2334	NJ2334	NUP2334	170	360	120	63
NU238	N238	NF238	NJ238	NUP238	190	340	55	23
NU203M	N203M	NF203M	NJ203M	NUP203M	17	40	12	0.08
NU204M	N204M	NF204M	NJ204M	NUP204M	20	47	14	0.133
NU205M	N205M	NF205M	NJ205M	NUP205M	25	52	15	0.155
NU206M	N206M	NF206M	NJ206M	NUP206M	30	62	16	0.24
NU207M	N207M	NF207M	NJ207M	NUP207M	35	72	17	0.344
NU208M	N208M	NF208M	NJ208M	NUP208M	40	80	18	0.439
NU209M	N209M	NF209M	NJ209M	NUP209M	45	85	19	0.523
NU210M	N210M	NF210M	NJ210M	NUP210M	50	90	20	0.578
NU211M	N211M	NF211M	NJ211M	NUP211M	55	100	21	0.691
NU212M	N212M	NF212M	NJ212M	NUP212M	60	110	22	0.95
NU213M	N213M	NF213M	NJ213M	NUP213M	65	120	23	1.16
NU214M	N214M	NF214M	NJ214M	NUP214M	70	125	24	1.34
NU215M	N215M	NF215M	NJ215M	NUP215M	75	130	25	1.4
NU216M	N216M	NF216M	NJ216M	NUP216M	80	140	26	1.76
NU217M	N217M	NF217M	NJ217M	NUP217M	85	150	28	2
NU222M	N222M	NF222M	NJ222M	NUP222M	110	200	38	5.11
NU224M	N224M	NF224M	NJ224M	NUP224M	120	215	40	6.47
NU226M	N226M	NF226M	NJ226M	NUP226M	130	230	40	7.34
NU226E	N226E	NF226E	NJ226E	NUP226E	130	230	40	7.26
NU228M	N228M	NF228M	NJ228M	NUP228M	140	250	42	9.1
NU230M	N230M	NF230M	NJ230M	NUP230M	150	270	45	11.7
NU230E	N230E	NF230E	NJ230E	NUP230E	150	270	45	11.2
NU232M	N232M	NF232M	NJ232M	NUP232M	160	290	48	14.2
NU234M	N234M	NF234M	NJ234M	NUP234M	170	310	52	18
NU236M	N236M	NF236M	NJ236M	NUP236M	180	320	52	19.6
NU238M	N238M	NF238M	NJ238M	NUP238M	190	340	55	22.6
NU244M	N244M	NF244M	NJ244M	NUP244M	220	400	65	38.9
NU248M	N248M	NF248M	NJ248M	NUP248M	240	440	72	48.2
NU252M	N252M	NF252M	NJ252M	NUP252M	260	480	80	70.3
NU260M	N260M	NF260M	NJ260M	NUP260M	300	540	85	87.2
NU2206M	N2206M	NF2206M	NJ2206M	NUP2206M	30	62	20	0.26
NU2207M	N2207M	NF2207M	NJ2207M	NUP2207M	35	72	23	0.4
NU2208M	N2208M	NF2208M	NJ2208M	NUP2208M	40	80	23	0.53
NU2209M	N2209M	NF2209M	NJ2209M	NUP2209M	45	85	23	0.54
NU2210M	N2210M	NF2210M	NJ2210M	NUP2210M	50	90	23	0.589
NU2211M	N2211M	NF2211M	NJ2211M	NUP2211M	55	100	25	0.773
NU2212M	N2212M	NF2212M	NJ2212M	NUP2212M	60	110	28	0.773
NU2218M	N2218M	NF2218M	NJ2218M	NUP2218M	90	160	40	3.68

 

• Low friction (Roller end / flange contact area)
• The open flange design, together with the roller end design and surface finish, promote lubricant film formation resulting in lower friction and higher axial load carrying capacity.

Enhanced operational reliability: 

The surface finish on the contact surfaces of the rollers and raceways supports the formation of a hydrodynamic lubricant film

 

Long service life: 

The logarithmic roller profile reduces edge stresses at the roller/raceway contact (fig. 3) and sensitivity to misalignment and shaft deflection.

 

Separable and interchangeable: 

The separable components of cylindrical roller bearings are interchangeable. This facilitates mounting and dismounting, as well as maintenance inspections.