Product Details

Best selling bearing steel gas turbines cylinder roller bearing NJ307

Product Description

Descriptions of gas turbines roller bearing NJ307

1.Cylindrical roller bearings without outer ring capped edge

The NU cylindrical roller bearing has double capped edges on outer ring and without capped edge on inner ring
The N cylindrical roller bearing has double capped edges on inner ring and without capped edge on outer ring
The NU and N cylindrical roller bearings, the shaft is allowed two-way displacement toward the bearing box, i.e. the cylindrical roller bearings can bear the change of shaft length due to thermal expansion. Thus It is suitable to serve as a non-fixed bearing. It can bear larger radial load, but cannot take axial load.

2.Cylindrical roller bearings with capped edge on both outer ring and inner

The NJ cylindrical roller bearing has double capped edge on outer ring and single capped edge on inner ring.
The NF cylindrical roller bearing with the single capped edge on outer ring & double capped edges on inner ring
The NJ & NF cylindrical roller bearing, the axial-displacement of the shaft or housing on one-direction can be limited. The one-direction axial positioning can be reached. It can burden smaller axial load from one-direction.
The NUP cylindrical roller bearing with double capped edges on the outer ring & with capped edge on one side of the inner ring, as well as with inner ring loose rib on the other side of the inner ring. The two-way axial positioning toward the shaft can be reached. The bearing can bear two-way axial force. The NUP & N cylindrical roller bearings can be chosen for the structure. The NJ and HJ cylindrical roller bearing with separate thrust collar is similar to the NUP cylindrical roller bearing, it can be used as the fixed (positioning) bearing.

3.Cylindrical roller bearings without inner ring or without outer ring

The RNU cylindrical roller bearing has an outer ring with double capped edges but does not come with inner ring. Such bearing is the NU cylindrical roller bearings without the inner ring
The RN cylindrical roller bearing has an inner ring with double capped edge but does not come with outer ring.
The RNU and RN cylindrical roller bearing are used with a component having a limitation on radial dimension. The axial journal or the surface of the housing bore can be used as the raceways. The hardness and the machining precision as well as the surface quality should be same as the raceways of the inner ring and the outer ring.

4.Cylindrical roller bearings with full complement (rollers)

Using double capped edges on the outer ring and single capped edges on the inner ring. i.e. type of NJ.V, NUP.V, RNU.V, etc. It has the advantage of great load rating and simple structure in comparison with the roller bearing which has the similar structure and has cage. In condition that rotation speed and working temperature is not high, good lubrication condition and the cleanliness of the bearing box is also relatively good then it has the first priority to use of the full complement (rollers) structure.

5.Cylindrical Roller Bearings (advance model)

The dimensions of E type cylindrical roller bearing are same as the dimensions of the ordinary type. But the load carrying capacity is increased accordingly due to the increasing of the diameter of rollers, the length and the number of rollers. An additional 'E' is added at the end of the designation to represent this kind of cylindrical roller bearings, besides the diameter of the roller's inscribed circle is difference from the ordinary type bearings. It cannot be replaced by the ordinary type bearings.

Quick details of gas turbines roller bearing NJ307

(Brand)	CLUNT
(Series)	Cylinerical roller bearing
(Bearing NO)	NJ30
(Basic size):mm	(d)	35
	(D)	80
	(B)	21
(Limiting Speeds)	(grease)	7900
	(oil)	10000
(Mass)	0.56 kg
(Detail)	singel row cylinderical roller bearing ,NJ series

Company Na-me	Jinan KELUNTE bearing Co., Ltd
Product Name	Cylindrical Roller Bearing
Brand	CLUNT.
Product characteristics	Series: NU, NJ, NUPG, NN, N, NNU, NJG, and so on. Inner diameter: 20-1300 mm Quality accords with the industry standard Types: Single Row Caged CRB, Double Row Caged CRB, Multi-row Cage CRB, Single Row Full Complement CRB, Double Row Full Complement CRB, Multi-row Full Complement CRB and so on. *Typical Applications: blower and fans, electric motors, gears and drives, machine tools, crushers, construction equipment and so on.
Packing	Single Box Package Then Put In Wooden Case
Material	GCr15_China/(AISI)52100_American/(DIN)100Cr6_Germany(Chrome steel)
Precision	P0,P2,P4,P6,P5
Advantages	100% quality manufacturing All facilities are quality certified We guarantee that our products meet your supplied specifications Extremely competitive pricing Partial container orders Flexible payment options Full range of packaging options from bulk to retail ready Complete testing services available
Quality	Original and Genuine brand bearing.
Payment Terms	TT,L/C, Weston Union
Delivery Time	3-7 days after receipt payment

Characteristics of gas turbines roller bearing NJ307

In bearings of this type, the cylindrical rollers are in linear contact with the raceways. They have a high

radial load capacity and are suitable for high speeds .There are different types designated as NU, NJ, NUP, N, NF (for single-row bearings), NNU, and NN

(for double-row bearings depending on the design or absence of side ribs).The outer and inner rings of

all types are separable.

Some cylindrical roller bearings have no ribs on either the inner or outer ring, so the rings can move

axially

relative to each other. These can be used as free-end bearings. Cylindrical roller bearings, in which

either the

inner or outer rings has two ribs and the other ring has one, are capable of taking some axial load in one

direction Double-row cylindrical roller bearings have high radial rigidity and are used primarily for

precision machine tools.Pressed steel or machined brass cages are generally used, but sometimes molded

polyamide cages are also

used .Depending on the existence of ribs on their rings, Cylindrical roller bearings mostly consist of the cage, the rollers and guided by two capped edges on a ring. It is a separable bearing, convenient for it's assembly and disassembly especially it has the advantages in a condition that the interference is required and assorted with inner ring, outer ring and housing. The bearing of this type can normally take the radial load, on the other hand, single row cylindrical roller bearing with ribbed inner ring and ribbed outer ring can take smaller axial load or intermittent axial load, this kind of bearing has a larger carrying capacity of axial load compare with the deep-grooves ball bearing. The structure of the bearing showing that it runs very well under high rotational speed.

Application
It widely used in middle-sized and large-sized motors, electricity generators, internal combustion engines, gas turbines, machine tool spindles, deceleration devices, unloading and lifting machines and other industrial machines and so on.

Features of gas turbines roller bearing NJ307

1.cylindrical roller bearing with steel cage and removable inner ring suitable for high radial loads

2.Metric unit measurements for industry consistency

3.Single row roller bearing for high radial loads with low friction

4.Removable inner ring in open bearing allows for lubrication in place

5.Steel construction for high load rating

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