NU222 Cylindrical roller Bearings mill roll bearing

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1000 pc
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Product Description:

Specification of Cylindrical roller bearings:


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



Single row cylindrical roller bearings


- NU, N single row cylindrical roller beaings

NU type and N type allows axis relative the cage within the scope of certain to do axial movement, it would adapt for thermal expansion or installation error caused by the shaft and housing relative position changes, they suit to use for free end bearing. Because they can not limit shaft and the shell axial displacement, and  can only bear the radial load.


- NJ, NF single row cylindrical roller bearings

Both NJ and NF can bearing single direction axial load in a certain extent.


- 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.


- NCL…V single row cylindrical roller bearings

No outer rim but with double lock ring without cage cylindrical roller bearing.

The bearing no cage, roller number is more, and size of the same other cylindrical roller bearing is able to withstand the big radial direction load, but its limit rotational speed is low. The bearing inner ring and outer inseparable, cannot install respectively, can limit shaft or housing of the two directions of the axial displacement in bearing axial clearance within the limit.



Bearing   No.dDB(mm)Weight(kg)Bearing No.dDB(mm)Weight(kg)












NU2021535110.047




NU2031740120.068




NU2042047140.110NU3042052150.150
NU2052552150.130NU3052562170.240
NU2063062160.200NU3063072190.360
NU2073572170.300NU3073580210.480
NU2084080180.370NU3084090230.650
NU2094585190.430NU30945100250.900
NU2105090200.480NU31050110271.150
NU21155100210.660NU31155120291.450
NU21260110220.810NU31260130311.800
NU21365120231.050NU31365140332.250
NU21470125241.150NU31470150352.750
NU21575130251.250NU31575160373.300
NU21680140261.500NU31680170393.950
NU21785150281.900NU31785180414.700
NU21890160302.350NU31890190435.450
NU21995170322.850NU31995200456.250
NU220100180343.450




NU221105190364.000




NU222110200384.800








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Q:Why does cylindrical roller bearings fail abnormally?
Generally, the causes of abnormal failure of cylindrical roller bearings are as follows:1, cylindrical roller bearing manufacturing accuracy is poor, one end of the bearings with loose, and travel source is larger, bearing frame rigidity is poor. Or the bottom of the bearing seat is uneven.2, cylindrical roller bearings axis misalignment (misalignment) axis and the housing of the shoulder to the surface is not vertical, shell installation, bearing two or more holes, different axis.
Q:How much is the axial force of double row cylindrical roller bearings? How is it calculated?
The cylindrical roller bearings have ribs can withstand certain axial force, the axial force for cylindrical but still belongs to the non normal stress, can cause early failure of the bearing, it is generally not given the axial bearing capacity, no formula
Q:Cylindrical roller bearingWhat are cylindrical roller bearings, are they available in Kunshan?
Because you do not know your request, can not provide you with more help, if necessary, you can ask.
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:Cylindrical roller and bearing outer ring processing is sheet metal forming?
Sheet metal forming? You think too simple. Do you know that a key technical parameter of a machine part is called tolerance? The inner and outer rings and roller rolling bearings (ball, roller) have strict tolerance requirements, but also requires a very high hardness and abrasion resistance, the general is the use of special alloy steel, rolling (usually hot) heat treatment after forming, after precision machining (turning, grinding etc.) after finished product.
Q:What are full cylindrical roller bearings?
Full cylindrical roller bearingCommon cylindrical roller bearings1, single row full cylindrical roller bearingsNCFNJG2 、 double row full cylindrical roller bearingNNCLNNCFNNCNNFTwo, not common full cylindrical roller bearings1, full spherical cylindrical roller bearings2, CARB ring roller bearings
Q:Can cylindrical roller bearings bear high temperature?
A class of grease, temperature is not more than 120 degrees, and then high temperature will lose lubrication performance, leading to the bearings can not work, in fact, bearing itself can withstand high temperature.
Q:Full use cylindrical roller bearings, uses and advantages?
Otherwise, due to lack of lubrication and high-speed operation will cause more wear and tear. I am a bearing
Q:What is the function of the flat retaining ring of NUP cylindrical roller bearings with flat retaining rings?
What is the function of the flat retaining ring of NUP cylindrical roller bearings with flat retaining rings?Used for more loose transition fit, so that the disassembly and assembly, to play an axial positioning and to bear axial thrust
Q:Why are there no double row cylindrical roller bearings in the mechanical design manual?
Normally, the inner diameter of the bearing should be in interference fit with the shaft (for some light loads, too, with a transition fit).

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