Product Details

Specifications

N312 bearings for conveyor rollers
1.Support high loads
2.High speed
3.Less friction
4.ISO:9001:2000

N312 bearings Germany stainless steel fro conveyor rollers

Descriptions of N312 bearings for conveyor rollers

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 N312 bearings for conveyor rollers

	Bore	C - Cylindrical Bore
	Cage Type	S - Steel or Standard Cage
	Seal	No Seal
	External Modification	No Pairing
	Radial Internal Play	Cn Normal Internal Play
	Precision	Standard Precision
	Heat Stabilization	No Heat Stabilization - Bearing rings or washers dimensionally stabilized for use at operating temperatures up to +120 °C

Name	N312 bearings for conveyor rollers
Model	N, NU, NJ, NF, NUP, NN, NNU, FC, FCD, FCDP, NNCF,NNF,SL etc
	NU222, NNU4952, N236, NJ315, NF216 ,NNCF2218, NNF5008, SL185032…
Material	GCr15	Certificate	ISO9001:2001
Precision	P0, P5	Clearance	C0,C1,C2,C3
Bore Size:	1mm-200mm	Outside diameter	1mm-200mm
Cage Material	Brass/Bakelite
Seals Type	RS, 2RS, R2, Z, 2Z, 2RZ etc.
Features	The structure of Cylindrical roller bearing is theinner ring and outer ring which can be seperated. Cylindrical Roller Bearing without sidewall in inner nor outer rings can be used as a free-end bearings because its inner and outer rings can move relative to the axial. Cylindrical Roller Bearing which has double sidewalls in either inner or outer ring and single sidewall in the other side,can bear a certain degreeof axial load.
Application	Mainly used in automobile, electrical equipment, instrument, building machinery, rolling stock agricultural machinery and various specialized machineries,machine spindle application.

Cylindrical roller bearing are in many designs,dimension series and sizes.Bearings with a cage can accomodate heavy radial loads and operate at high speeds.Full complement bearings are suitable for very heavy radial loads at moderate speeds.This type of bearings is separable.
As their rollers lineary come into contact with inner ring and outer ring with less coefficient of friction,these bearings have very good capacity of radial load,suitable for electric motors,automobiles,transmission shafts,gear shafts and so on.Double row cylindrical roller bearings are good at the spindles of machine tools.

In bearing of this type, the cylindrical rollers Bearing 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 NU, NJ, NUP, N, NF for single-row bearings, and NNU, NN for double-row bearings depending on the design or absence of side ribs.
The outer and inner rings of all types are separable.
Pressed steel or machined brass cages are generally used, but sometimes molded polyamide cages are also used.

Bearing Features of N312 bearings for conveyor rollers

*Separable design

*Easy to mount and dismount

*High radial load capacity

*Widespread use and verastility

*Caged design

*Low cross section

*High stiffness

*High radial load capacity

*Enhanced operational reliability

The structure of N312 bearings for conveyor rollers

Cylindrical roller bearing is usually by a wall bearing rings of the two lead, Cage, and guide roller rings composed of a combination of things, the general type of bearing is detachable. Bearing this installation, the demolition of more convenient, especially when requested, and the outer shell and shaft are fit more shows its advantages. Bearing this kind generally used for radial load to bear, only, the outer wall with all the separate bearings can withstand axial loading smaller or larger batch of axial load. The same size and shape of the deep groove ball bearings, bearing with such a large radial load capacity of the structure from the point of view, also applies to high-speed rotation.

The usage of N312 bearings for conveyor rollers
Cylinderidal roller bearing and the raceway crown used it to design modification to eliminate the edge of the stress and improve bearing life.Bearing Cylindrical roller bearings
DF wall design of a certain angle, so the bearer of the axial load greater than the more conventional design for bearings
Instruction of N312 bearings for conveyor rollers

Cylindrical roller and the raceway is a linear contact,load capacity,able to withstand greater radial

load and punch load,but also applies to high-speed rotation.Cylindrical Roller Bearing have a single row,double row,four-row and other deformation structures,which the single row Cylindrical Roller Bearing are most applicacable.

Cylindrical Roller Bearing is separable formed bearing,and convenient to be mounted and dismounter.Normally Cylindrical Roller Bearing can accommodate radial load only,none but single row bearings with ribs both on inner and outer rings can carry panial lighter axial load.

Details of parts models

Bearing No.	d(mm)	D(mm)	B(mm)
NJ322	110	240	50
NJ2205	25	52	18
NJ2210	50	90	23
NJ2220	100	180	46
NJ2305	25	62	24
NJ2319	95	200	67
NUP204	20	47	14
NUP220	100	180	46
NUP304	20	52	15
NUP320	100	215	47
NUP2205	25	52	18
NUP2210	50	90	23
NUP2220	100	180	46
NUP2320	100	215	73