NN3048K Double Row Cylindrical roller Bearings mill roll bearing

NN3048K Double Row Cylindrical roller Bearings mill roll bearing System 1

NN3048K Double Row Cylindrical roller Bearings mill roll bearing System 2

NN3048K Double Row Cylindrical roller Bearings mill roll bearing System 3

NN3048K Double Row Cylindrical roller Bearings mill roll bearing

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 1000 pc

Supply Capability:: 5000000 pc/month

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Specification of Double Row Cylindrical roller bearings:

Double row Cylindrical roller bearings belong to separable bearings, whose inner and outer rings are linearly contacted with rollers. They have small friction coefficient, bigger capacity of bearing radial load and are applicable to both bearing heavy load and impact load and high-speed rotation. Cylindrical roller bearings have the advantages of compact structure, strong stiffness, big bearing capacity, small deformation after loaded etc.

CNBM has already successfully developed split cylindrical roller bearings which can be freely installed at any time and any place, to meet the demand of driving and conveying rollway bearings at cooling area of continuous casting. CNBM also can provide special cylindrical roller bearings according to requirement of customers.

Product Application:

- Iron and steel metallurgical industry

- Medium and large motor

- Generator

- Combustion engines

- Machine tool spindle

- Speed reducer

- Loading and unloading machinery and all kinds of industrial machinery

Double row cylindrical roller bearings

- NN double row cylindrical roller bearings

This kind of bearings with inner rid, no outer rid. This assembly part can be separated from another ring, and they have larger radial load capacity than other single row cylindrical roller bearings with the same size, but the axial or housing is free axial displacement, so this kind of bearings can only bear the axial load.

- NNU, NNU…K double row cylindrical bearings

NNU,NNU...K type bearings with outer rid, no inner rid. There are tow kinds of holes, one is cylindrical hole, and another is tapered hole. Axial or housing is free axial displacement, so this kind of bearings can not bear the axial load. But these kind of bearings have larger radial load capacity than other single row roller bearings with the same size.

- NUP single row cylindrical roller bearings

NUP type bearings with double outer rid, single inner rid and loose rid, this design is possible to limit the axial displacement of the shaft or the housing in double direction within the scope of the axial clearance. in addition they mainly used to bear radial load, also can withstand diameter, the axial union load. Therefore this NUP suitable for fixed end bearings.

- NNCF double row cylindrical bearings

NNCF type bearings with three inner rids and one outer rid. They can take a direction axial positioning. There is a fixed ring in the other side of the outer rid, it can make bearing keep as one.

Double Row Cylindrical Roller Bearings Catalogue:

Desiganations	Basic load rating KN		Principal dimensions					Spead ratings rpm.		Weight
	Cr	Cor	d	D	B	r	Ew.Fw	Grease	Oil	kg
NN3032K	345	675	160	240	60	2.1	219	3800	3200	8.39
NN3032KTN1	345	335	160	240	60	2.1	219	3800	3200	7.86
NN3032K/W33	345	675	160	240	60	2.1	219	3000	2200	8.38
NN3032K/YB2	345	675	160	240	60	2.1	219	3000	2200	8.39
NN3032	345	675	160	240	60	2.1	219	3000	2200	8.38
NN3034K	435	860	170	260	67	2.1	236	3600	3000	12.9
NN3034/YA8	435	860	170	260	67	2.1	236	3000	2200	13.3
NN3036K	555	1090	180	280	74	2.1	255	3400	2800	16.9
NN3036	555	1090	180	280	74	2.1	255	2800	2000	16.9
4382936	337	703	180	250	69	2.3	201	2800	2000	9.8
NN3038K	565	1140	190	290	75	2.1	265	3200	2600	17.9
NN3038K/W33	565	1140	190	290	75	2.1	265	2600	1900	17.1
NN3038	565	1140	190	290	75	2.1	265	2600	1900	18
NNU4938B-W33	560	1250	190	260	69	3	212	2600	1900	11
NNU6038	1260	3200	190	290	180	2.1	219	2600	1900	43.6
NN3034K	675	1340	200	310	82	2.1	282	3000	2400	22
NN3034	675	1340	200	310	82	2.1	282	2400	1900	22.1
NN3044K	795	1610	220	340	90	3	310	2800	2200	30.1
NN3044K/W33	795	1610	220	340	90	3	310	2200	1800	30
NN3044	795	1610	220	340	90	3	310	2200	1800	31
NN3048K	810	1690	240	360	92	3	330	2600	2000	32.7
NN3048	810	1690	240	360	92	3	330	2000	1700	31.6
482752U	605	1500	260	360	80	2.1	282	1600	1900	28.2
NN3056K	1060	2290	280	420	106	4	384	2200	1800	49.7
NN3056	1060	2290	280	420	106	4	384	1700	1400	52.3
3182160	1290	2790	300	460	118	4	418	1200	1500	76.2
3282160	1290	2790	300	460	118	4	418	1200	1500	77.9
31821/600	4050	9850	600	870	200	6	805	600	800	384
32821/600K	4050	9850	600	870	200	6	805	600	800	403
31821/630	4350	10600	630	920	212	7.5	850	550	750	438
32821/630K	4350	10600	630	920	212	7.5	850	550	750	460
NN3030K	330	650	150	225	56	2.1	206	4000	3400	7.7
NN3030/YA8	330	650	150	225	56	2.1	206	4000	3400	7.7
NN3030	330	650	150	225	56	2.1	206	3200	2400	7.75
NN3030/C9	330	650	150	225	56	2.1	206	3200	2400	7.75
NN3030/C9YA8	330	650	150	225	56	2.1	206	3200	2400	7.79
NN3030K/C91W33	330	650	150	225	56	2.1	206	3200	2400	7.7

Q:Why should the main shaft be coupled with double row cylindrical roller bearings?: Because double row cylindrical roller bearings with high carrying capacity, high precision, separation, easy installation and disassembly, mainly used in lathes, milling machines, machining centers and other high-precision machine tool spindle. Hope to be of help to you.

Q:How to check the thrust cylindrical roller bearings?: However, in the conventional design, there are few checking bearings, as long as the shaft and shell meet the intensity requirements on the line, because the manufacture of bearings than ordinary mechanical parts to be much more stringent (except shoddy products).If you do your homework, do it according to the design manual.

Q:What does "cylindrical roller bearing" ENV mean?: Cylindrical roller bearings, the basic model suffix ENV meaning:E: enhanced design with improved bearing load capacityN: the outer ring of the bearing is provided with a stopping grooveV: full installed roller (no cage)

Q:Full use roller bearings: The service is applied to all axle box bearings, including FAG cylindrical roller bearings, spherical bearings and tapered roller NSK bearings. In addition, FAG industry services also provide support to customers in the rail industry who introduce maintenance management systems. INA bearing agent Chinese by helping clients improve internal maintenance procedures, F IS can enhance the data exchange between various departments, and clearly useless procedures, such as entry in IT system and database in different kinds of data. This reduces the cost of raw material management and speeds up maintenance activities. NSK it is very important for the effective maintenance management to install the bearing units rapidly and effectively in china. At the same time, the F IS offers a range of energy saving bearing heaters. Including the FAG Powertimken series induction heater, to enable customers to reduce the installation time of bearing, NSK bearings so as to shorten the downtime, instead of using the traditional heating method (oil bath heating stove, or board). FAG is a research and development partner and supplier of the world's leading Boeing 787 manufacturer. The quality, reliability and efficiency of Schaeffler's aviation bearings, INA bearings, price fits, and performance in extreme conditions, the INA bearing agent provides support for the international space navigation corporation. FAG's bearing technology is used on almost all modern aircraft.

Q:Which column roller bearing brand is good?: Foreign SKF is better, the domestic is Kazakhstan axis, and then is Taiwan's Rui Rui, you can look at yourself, they recently in the Qingdao market to great influence, you can understand.

Q:For example, NU, NJ, N, RNU, NUP, NF, NO, NN, RN, what do you mean, who can tell me about that hero?: NN double row cylindrical roller bearing inner ring gear side no outer wallRN no outer ring type N cylindrical roller bearing

Q:In the car there is a cylindrical roller, the size of the diameter of 25mm, the outer diameter of 32mm, width of 9.5mm, who knows what the standard size, have direct purchase Mody, thank you!: Bearing (Bearing) is an important component of modern mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement and guarantee its rotation accuracy.According to the friction property of the moving element, the bearings can be divided into two kinds: rolling bearing and sliding bearing. Among them, the rolling bearing has been standardized and serialized, but compared with the sliding bearing, its radial dimensions, vibration and noise are relatively large, and the price is higher.Generally, the rolling bearings are composed of four parts: the outer ring, the inner race, the rolling body and the cage. According to the shape of the rolling element, the rolling bearings are divided into two major categories: ball bearings and roller bearings.

Q:Gb/t283 cylindrical roller bearing age number?: Hello, it's 2007.GB/T 283-2007 roller bearings cylindrical roller bearings overall dimensionsStandard number: GB/T 283-2007Rolling bearings - cylindrical roller bearings - DimensionsRolling bearings - cylindrical roller bearings - DimensionsEnglish, Name:Rolling, bearings - Cylindrical, rolling, bearings - Boundary - Dimensions

Q:Double row full cylindrical roller bearings, NNCF5008 installation, we need to pay attention to the direction of it?: In theory, cylindrical roller bearings provide radial force, so there should be no direction.

Q:Why cylindrical roller bearings can not bear axial load?.: The thrust bearing retainer plate and two pieces of circular hole of the ball and the ball hole and shaft wear in the park, circular plate, steel ball track between two plate, shaft and the bearing seat of the top plate in the round two sides, in addition to the track groove, it is not binding the radial direction, so it cannot withstand the radial load.The radial bearing by the size of the two steel ring, steel ball size between steel ring, steel ring diameter fixed by a bearing seat, shaft mounted on a small steel ring, binding only in the radial direction and axial direction of the load is not binding, so it cannot withstand the axial diameter.

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