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Cylindrical Roller Bearing N228EM for industry machine
  • Cylindrical Roller Bearing N228EM for industry machine
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Min. Order: 1
Basic Info

Model No.:  N228EM

Product Description Model NO.: N228EM The Number of Rows: Single Material: Bearing Steel Load Direction: Radial Bearing Model No.: N228EM Application: Reducer motor Seal Type: N, NU, NJ, NNU, NUP, Seal, Open, E, ECM, ECP Brand Name: A&F or OEM SKF NTN Koyo SKF Specification: SGS HS Code: 8482109000 Rolling Body: Roller Bearings Outer Dimension: Small and Medium-Sized (60-115mm) Spherical: Non-Aligning Bearings Separated: Separated Number of Row: Single Row Product Material: Chrome Steel Bearing Steel cage material: nylon, steel, brass Trademark: A&F, SKF, NSK, NTN, IKO. Origin: Shandong Cylindrical Roller Bearing

1. What is a Cylindrical Roller Bearing?
Cylindrical roller bearing are of high load capacity and can operate at high speeds because they use rollers as their rolling elements. They can therefore be used in applications involving heavy radial and impact loading.
The rollers are cylindrical in shape and crowned at the end in order to reduce the stress concentrations. They are also suitable for applications that require high speed because the rollers are guided by ribs which are either on the outer or inner ring.
2. More information:
With the absence of ribs, either the inner or outer ring will move freely so as to adjust to axial movement hence can be used as free side bearings. This enables them to absorb shaft expansion to a certain extent, relative to the housing position.
NU and NJ type cylindrical roller bearing produce high performance results when used as free side bearings because they possess the required characteristics for that purpose. NF type cylindrical roller bearing also supports the displacement of the axial to a certain extent in both directions and therefore can be used as a free side bearing.
In applications where heavy axial loads have to be supported, cylindrical roller thrust bearings are the most suitable. This is because they are designed to contain shock loads, are stiff and the axial space required is little. They only support axial loads that are acting in a single direction.
3. Detailed applications:
Specifically, our cylindrical roller bearings can be used in industrial transmission, automotive, electric motor, generator sets, elevating machinery, machine tool spindles as well as internal-combustion engines, etc.
4. Advantages:
These roller bearings can be separated and are easy to mount as well as dismount.
5. Product specification:
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,Types NU, N, NNU,and NN are suitable as freeend bearings. Types NJ and NF can sustain limited axial loads in one direction. Types NH and NUP can be used as fixed-end bearings.
NH-type cylindrical roller bearings consist of the NJ-type cylindrical roller bearings and HJ-type L-shaped thrust collars.
The inner ring loose rib of an NUPtype cylindrical roller bearing should be mounted so that the marked side is on the outside..

6. Products application:

7. Our advantage compare to other suppliers:
1. Small order accepted, if we have stock.
2. OEM offered: Technical drawings or samples welcomed.
3. High quality, competitive price, delivery efficiency.
4. Professional supplier: Over 20 years in precision bearing, rollers.
5. SGS/CE/ISO9001 Certificate
6. DSBR produce.





9. Cylindrical roller bearing clearance:
Nominal diameter d C2 C0 C3 C4 C5
mm
More than To min max min max min max min max min max
  10 0 25 20 45 35 60 50 75    
10 24 0 25 20 45 35 60 50 75 65 90
24 30 0 25 20 45 35 60 50 75 70 95
                       
30 40 5 30 25 50 45 70 60 85 80 105
40 50 5 35 30 60 50 80 70 100 95 125
50 65 10 40 40 70 60 90 80 110 110 140
                       
65 80 10 45 40 75 65 100 90 125 130 165
80 100 15 50 50 85 75 110 105 140 155 190
100 120 15 55 50 90 85 125 125 165 180 220
                       
120 140 15 60 60 105 100 145 145 190 200 245
140 160 20 70 70 120 115 165 165 215 225 275
160 180 25 75 75 125 120 170 170 220 250 300
                       
180 200 35 90 90 145 140 195 195 250 275 330
200 225 45 105 105 165 160 220 220 280 305 365
225 250 45 110 110 175 170 235 235 300 330 395
                       
250 280 55 125 125 195 190 260 260 330 370 440
280 315 55 130 130 205 200 275 275 350 410 485
315 355 65 145 145 225 225 305 305 385 455 535
                       
355 400 100 190 190 280 280 370 370 460 510 600
400 450 110 210 210 310 310 410 410 510 565 665
450 500 110 220 220 330 330 440 440 550 625 735

10. We can also supply the other brand bearing: SKF NTN NSK KOYO IKO MRC FAFNIR JIB...


11.Why choose us?

1. The quality assurance:

Product quality is the lifeline of an enterprise. In order to possessing the leading technology, our company implements the quality control system and establishes a technical and strict inspection team. As per the regulation of three-dimensional management and multiple checks, each product was inspected by the producer, inspector, inspection department and quality department elaborately, especially to the important inspection items and precision inspection item.

2. The convenient & fast transportation to Qingdao port & Dalian

Our factory is located in yandian county, eaierly transport to the port by car

3. 24- hour customers series online:

High quality, good credit and excellent service are the tenet of our factory. Customers'satisfaction is our lifeline, as well as our highest honor. We will do our best to meet your requirements, and will do better in the future.

Contact us if you need more details on Cylindrical Roller Bearing. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Roller Bearing、Ball Bearing. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Cylindrical Roller Bearing

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