NU208 Cylindrical roller Bearings mill roll bearing
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 pc
- Supply Capability:
- 5000000 pc/month

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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. | d | D | B(mm) | Weight(kg) | Bearing No. | d | D | B(mm) | Weight(kg) | |||||
NU202 | 15 | 35 | 11 | 0.047 | ||||||||||
NU203 | 17 | 40 | 12 | 0.068 | ||||||||||
NU204 | 20 | 47 | 14 | 0.110 | NU304 | 20 | 52 | 15 | 0.150 | |||||
NU205 | 25 | 52 | 15 | 0.130 | NU305 | 25 | 62 | 17 | 0.240 | |||||
NU206 | 30 | 62 | 16 | 0.200 | NU306 | 30 | 72 | 19 | 0.360 | |||||
NU207 | 35 | 72 | 17 | 0.300 | NU307 | 35 | 80 | 21 | 0.480 | |||||
NU208 | 40 | 80 | 18 | 0.370 | NU308 | 40 | 90 | 23 | 0.650 | |||||
NU209 | 45 | 85 | 19 | 0.430 | NU309 | 45 | 100 | 25 | 0.900 | |||||
NU210 | 50 | 90 | 20 | 0.480 | NU310 | 50 | 110 | 27 | 1.150 | |||||
NU211 | 55 | 100 | 21 | 0.660 | NU311 | 55 | 120 | 29 | 1.450 | |||||
NU212 | 60 | 110 | 22 | 0.810 | NU312 | 60 | 130 | 31 | 1.800 | |||||
NU213 | 65 | 120 | 23 | 1.050 | NU313 | 65 | 140 | 33 | 2.250 | |||||
NU214 | 70 | 125 | 24 | 1.150 | NU314 | 70 | 150 | 35 | 2.750 | |||||
NU215 | 75 | 130 | 25 | 1.250 | NU315 | 75 | 160 | 37 | 3.300 | |||||
NU216 | 80 | 140 | 26 | 1.500 | NU316 | 80 | 170 | 39 | 3.950 | |||||
NU217 | 85 | 150 | 28 | 1.900 | NU317 | 85 | 180 | 41 | 4.700 | |||||
NU218 | 90 | 160 | 30 | 2.350 | NU318 | 90 | 190 | 43 | 5.450 | |||||
NU219 | 95 | 170 | 32 | 2.850 | NU319 | 95 | 200 | 45 | 6.250 | |||||
NU220 | 100 | 180 | 34 | 3.450 | ||||||||||
NU221 | 105 | 190 | 36 | 4.000 | ||||||||||
NU222 | 110 | 200 | 38 | 4.800 |
- Q:How are the twin row cylindrical roller bearings classified?
- Double row cylindrical roller bearings have cylindrical inner bore and conical inner bore (bearing rear code plus K) two structures. This kind of bearing has the advantages of compact structure, large rigidity, large bearing capacity and little deformation after load. It is especially suitable for spindle support of machine tools. The conical inner hole can also play the role of micro adjustment of the clearance, and can simplify the positioning device structure, and is convenient for installation and disassembly.
- Q:Can cylindrical roller bearings bear high temperature?
- Bearing is not high temperature grease is not high temperature, a grease temperature does not exceed 120 degrees, high temperature will lead to bearing lubrication performance, unable to work, in fact, the bearing itself can be high temperature resistant.
- 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: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:What is called a semi convex roller, a fully convex roller, a logarithmic curve roller?
- What is called a semi convex roller, a fully convex roller, a logarithmic curve roller?Semi convex, convex roller is in plane roller axis, the outer surface of a continuous or discontinuous convex curved basic cylindrical or conical roller, to prevent the end of the roller and raceway contact stress concentration. The roller is generally defined as a convex roller and a modified roller.
- Q:How much is the shaft shoulder height of the 81105 cylindrical roller bearings with inner diameter 25mm?
- The purpose of the shoulder shaft is to limit the axial sliding, of course, as the thrust bearing, the main bearing capacity is the axial force, so the shaft shoulder size can be appropriately larger.
- Q:Is the roller bearing and the bearing chamber movable in the tapered rotor motor?
- E in cylindrical roller bearing is the meaning of improving internal cage design, similar to the SKF cylindrical roller bearing EC form, this type of bearing than without E, is to strengthen the design, the roller is filled more larger to increase the load. From the load point of view, it is better to choose E.
- 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:How to check the thrust cylindrical roller bearings?
- This data is the minimum axial load, not the maximum axial load.
- Q:Can it be used for axial alignment? Forty-fiveWhat is the function of the flat retaining ring of NUP cylindrical roller bearings with flat retaining rings? Can it be used for axial alignment?How much axial force can I bear then?You are the ZWZ? Can you make a friend?!How much axial force can you bear? Do you have a formula or a recommended value?NUP is needle roller bearings, brothers, I dialed the wrong number:What is the function of the flat retaining ring of the needle roller bearing with flat ring NUP? Can it be used for axial alignment?There seems to be no experts here, all mixed up
- Yes, the function of the flat ring is to bear the axial force and be used for axial positioning.
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