Double Row Bearing Nn30/750/W33 with High Load Ratings and Easy Installation

• Customization: Available
• Rolling Body: Roller Bearings
• The Number of Rows: Double
• Model NO.: Nnu4188/W33
• Outer Dimension: Small and Medium-Sized (60-115mm)
• Material: Brass
• Spherical: Aligning Bearings
• Load Direction: Thrust Bearing
• Separated: Separated
• Transport Package: Industrial and Single Box
• Specification: standard
• Trademark: JRZC /SUFUL Brand or OEM
• Origin: China
• HS Code: 8483200000
• Production Capacity: 1, 500, 000 Pieces/Year
• Package Size: 23.00cm * 23.00cm * 5.00cm
• Package Gross Weight: 3.600kg

Product Description

Cylindrical Roller Bearings

double row, with cage

• Available in various designs
• High to very high load ratings
• Available with cylindrical or tapered bore

• Double row cylindrical roller bearings with cage can absorb very high radial forces due to the linear contact between rolling element and bearing ring. They are classified into two general designs which differ in flange position on the inner or outer ring. Double row cylindrical roller bearings can be disassembled and are easily installed or uninstalled. They are suitable for medium to high speeds, but they are rigid and cannot compensate angular misalignments.

 

The raceway is super-finished, suitable for high speed 800-1500 rpm.
Thickened electrolytic copper cage, enhanced toughness and bearing capacity, suitable for high-speed motors.
Bainite heat treatment enhances product bearing capacity by 30% and wear resistance by 40%.
Fine grinding inner ring, tolerance -0.2mm, narrowing accuracy range, P5 accuracy.



The ball race type without flanges of both designs facilitates clearance in axial direction of the housing. The compensation of misaignment or linear expansion of the shaft occurs unrestrained in the bearing so a sliding fit in the housing or on the shaft is not necessary.

By default, cylindrical roller bearings by KRW are designed with optimised contact areas between roling elements and raceways. Due to the logarithmic prohling of the cylindrical rollers, damaging edge tension is avoided even with very high loads.





Double row cylindrical roller bearings with cage are dismountable and non-latching bearings that are available in the standard designs NNU and NN.

The outer ring of NNU bearings has three integral flanges while the inner ring is designed without flanges. For NN bearings, the three integral flanges are located on the inner ring and the outer ring has no flanges.

Double row cylindrical roller bearings with cage are suitable for the absorption of very high radial forces and offer especially high rigidity. Cylindrical roller bearings can be delivered with cylindrical or tapered bore.




 

Bearing type	Internal Diameter	Outer Diameter	Width	Dynammic Load Rating	Static Load Rating	Limiting Speed		Weight
	d	D	W	Cr	Cor	Grease	Oil	Weight
	(mm)	(mm)	(mm)	(kN)	(kN)	(r/min)	(r/min)	(kg)
NU1012	60	95	18	38.5	45	5300	6700	0.48
NU1013	65	100	18	39	46.5	4800	6000	0.51
NU1014	70	110	20	47.5	57	4800	6000	0.71
NU1015	75	115	20	51.5	61.2	4500	5600	0.74
NU1016	80	125	22	59.2	77.8	4300	5300	1
NU1017	85	130	22	64.5	81.6	4000	5000	1.05
NU1018	90	140	24	74	94.8	3800	4800	1.36
NU211E	55	100	21	80.2	95.5	5300	6700	0.68
NU212E	60	110	22	89.8	102	5000	6300	0.86
NU213E	65	120	23	102	118	4500	5600	1.08
NU214E	70	125	24	112	135	4300	5300	1.2
NU215E	75	130	25	125	155	4000	5000	1.32
NU216E	80	140	26	132	165	3800	4800	1.58
NU217E	85	150	28	158	192	3600	4500	2
NU218E	90	160	30	172	215	3400	4300	2.44
NU2211E	55	100	25	94.8	118	5300	6700	0.81
NU2212E	60	110	28	122	152	5000	6300	1.12
NU2213E	65	120	31	142	180	4500	5600	1.48
NU2214E	70	125	31	148	192	4300	5300	1.56
NU2215E	75	130	31	155	205	4000	5000	1.64
NU2216E	80	140	33	178	242	3800	4800	2.05
NU2217E	85	150	36	205	272	3600	4500	2.58
NU2218E	90	160	40	230	312	3400	4300	3.26
NU2311E	55	120	43	190	228	4800	6000	2.28
NU2312E	60	130	46	212	260	4500	5600	2.81
NU2313E	65	140	48	235	285	4000	5000	3.34
NU2314E	70	150	51	260	320	3800	4800	4.1
NU2315	75	160	55	245	308	3600	4500	5.4
NU2316	80	170	58	258	328	3400	4300	6.4
NU2317	85	180	60	295	380	3200	4000	7.4
NU311E	55	120	29	128	138	4800	6000	1.53
NU312E	60	130	31	142	155	4500	5600	1.87
NU313E	65	140	33	170	188	4000	5000	2.31
NU314E	70	150	35	195	220	3800	4800	2.86
NU315E	75	160	37	228	260	3600	4500	3.43
NU316E	80	170	39	245	282	3400	4300	4.05
NU317E	85	180	41	280	332	3200	4000	4.82
NU411	55	140	33	128	132	4300	5300	2.8
NU412	60	150	35	155	162	4000	5000	3.4
NU413	65	160	37	170	178	3800	4800	4
NU414	70	180	42	215	232	3400	4300	5.9
NU415	75	190	45	250	272	3200	4000	7.1
NU416	80	200	48	285	315	3000	3800	8.3
NU417	85	210	52	312	345	2800	3600	9.8
Bearing type	Internal Diameter	Outer Diameter	Width	Dynammic Load Rating	Static Load Rating	Limiting Speed		Weight
	d	D	W	Cr	Cor	Grease	Oil	Weight
	(mm)	(mm)	(mm)	(kN)	(kN)	(r/min)	(r/min)	(kg)
NJ1008	40	68	15	21.2	22	7500	9500	0.22
NJ1009	45	75	16	23.2	23.8	6500	8500	0.26
NJ1010	50	80	16	25	27.5	6300	8000	-
NJ207E	35	72	17	46.5	48	7500	9500	0.311
NJ208E	40	80	18	51.5	53	7000	9000	0.394
NJ209E	45	85	19	58.5	63.8	6300	8000	0.45
NJ210E	50	90	20	61.2	69.2	6000	7500	0.505
NJ2207E	35	72	23	57.5	63	7500	9500	0.414
NJ2208E	40	80	23	67.5	75.2	7000	9000	0.507
NJ2209E	45	85	23	71	82	6300	8000	0.55
NJ2210E	50	90	23	74.2	88.8	6000	7500	0.59
NJ2307E	35	80	31	87.5	98.2	7000	9000	0.738
NJ2308E	40	90	33	105	118	6300	8000	0.974
NJ2309E	45	100	36	130	152	5600	7000	1.34
NJ307E	35	80	21	62	63.2	7000	9000	0.501
NJ308E	40	90	23	76.8	77.8	6300	8000	0.68
NJ309E	45	100	25	93	98	5600	7000	0.93
NJ310E	50	110	27	105	112	5300	6700	1.2
NJ406	30	90	23	57.2	53	7000	9000	0.73
NJ407	35	100	25	70.8	68.2	6000	7500	0.94
NJ408	40	110	27	90.5	89.8	5600	7000	1.25
NJ409	45	120	29	102	100	5000	6300	1.8
NU1024	120	180	28	130	168	2600	3400	2.96
NU1026	130	200	33	152	212	2400	3200	3.7
NU1028	140	210	33	158	220	2000	2800	4
NU1030	150	225	35	188	268	1900	2600	4.8
NU2224	120	215	58	345	522	2200	3000	9.5
NU2226	130	230	64	368	552	2000	2800	11.5
NU2228	140	250	68	438	700	1800	2400	15
NU224E	120	215	40	322	422	2200	3000	6.11
NU226	130	230	40	258	352	2000	2800	7
NU228	140	250	42	302	415	1800	2400	9.1
NU2322	110	240	80	535	740	2000	2800	17.5
NU2324	120	260	86	632	868	1900	2600	22.5
NU2326	130	280	93	748	1060	1700	2200	28.5
NU2328	140	300	102	825	1180	1600	2000	37
NU322	110	240	50	352	428	2000	2800	11
NU324	120	260	55	440	552	1900	2600	14
NU326	130	280	58	492	620	1700	2200	18
NU328	140	300	62	545	690	1600	2000	22
NU422	110	280	65	515	602	1800	2400	22
NU424	120	310	72	642	772	1700	2200	30
NU426	130	340	78	782	942	1500	1900	39
NU428	140	360	82	845	1020	1400	1800	-