Cylindrical roller bearing suffix Please consult

According to SKF's division, cylindrical bearings with an inner diameter of more than 140 have no nylon guarantee in the form of cage, that is, there is no ECP suffix, only ECJ steel and ECM copper.

Reply to zhangr0413's post nj indicates that the bearing has flanges on both sides of the outer ring and one side of the inner ring. "EC" indicates an optimized internal design with more or larger rolling elements and improved contact between the roller end face and the flange. Of course, what I'm talking about are cylindrical roller bearings of SKF bearings, and I can't help other bearings, hehe!!

Reply 2 The customer sent the model directly over, without saying which brand. It seems that SKF and IKO have this model, but they can't find it in their catalog.

SKF Cylindrical Roller Bearing Data Sheet |Model |Inner Diameter (mm) |Outer Diameter (mm) |Width (mm) |Net Weight (kg) |nu 202 ecp | 15 | 35 | 11 | nu 203 ecp | 17 | 40 | 12 | nu 204 ecp | 20 | 47 | 14 | nu 205 ecp | 25 | 52 | 15 | nu 206 ecp | 30 | 62 | 16 | nu 207 ecp | 35 | 7

Hello, the following are some general cylindrical rock roller bearing parameter tables (data for reference only):1SKF Cylindrical Roller Bearing Data Sheet |Model |Inner Diameter (mm) |Outer jujube cavity diameter (mm) |Width (mm) |Net Concealment Weight (kg) |nu 202 ecp | 15 | 35 | 11 | nu 203 ecp | 17 | 40 | 12 | nu 204 ecp | 20 | 47 | 14 | nu 205 ecp | 25 | 52 | 15 | nu 206 ecp | 30 | 62 | 16 | nu 207 ecp | 35 | 7

nu 207 ecp | 35 | 72 | 17 | nu 208 ecp | 40 | 80 | 18 | 2.FAG cylindrical rolled tung bearing parameter table|Model |Inner diameter eggplant chop (mm) |Outer Diameter (mm) |Width (mm) |Net weight tremor Zhengchang (kg) |15 | 35 | 11 | 17 | 40 | 12 | 20 | 47 | 14 | 25 | 52 | 15 |

3.nsk cylindrical stove talk roller argument rough bearing bumper parameter table|Model |Inner Diameter (mm) |Outer Diameter (mm) |Width (mm) |Net Weight (kg) |nu202ew | 15 | 35 | 11 | nu203ew | 17 | 40 | 12 | nu204ew | 20 | 47 | 14 | nu205ew | 25 | 52 | 15 | nu206ew | 30 | 62 | 16 | nu207ew | 35 | 72 | 17 |

nu207ew | 35 | 72 | 17 | nu208ew | 40 | 80 | 18 |Please note that the parameters of the same type of cylindrical roller spike bearing may be different, and the actual use shall prevail.

Summary. Hello! The parameter table of cylindrical roller bearings includes the outer diameter, inner diameter, diameter of the rollers, the number of rollers and the thrust capacity of the bearing. The following is the parameter table.

Hello! The parameter table of cylindrical roller bearings includes the outer diameter, the inner diameter of the child, the diameter of the rollers, the number of rollers and the thrust capacity of the bearing Qingyan. The following is the parameter table.

cylindrical roller bearing

The cylindrical rollers and raceways are linear contact bearings. The load capacity is large, and it mainly bears radial loads. The friction between the rolling element and the ring flange is small, and it is suitable for high-speed rotation.

According to whether the ring has a flange or not, it can be divided into single row cylindrical roller bearings such as NU, NJ, NUP, N, NF, etc., and double row cylindrical roller bearings such as NNU and NN. The bearing is a separable structure for the inner ring and outer ring.

Cylindrical roller bearings with no flanges in the inner or outer rings can be moved axially and can be used as free-end bearings. Cylindrical roller bearings with double flanges on one side of the inner and outer rings and a single flange on the other side of the ferrule can withstand a certain degree of axial load in one direction. Generally, steel plate stamping cages are used, or copper alloy turned solid cages.

However, some cages are formed using polyamide. 1.The roller and raceway are in line contact or trimmed down line contact, and the radial bearing capacity is large, which is suitable for bearing heavy loads and shock loads.

2.The coefficient of friction is small, suitable for high speed, and the ultimate speed is close to that of deep groove ball bearings.

3.N-type and N-type can move axially, can adapt to the change of the relative position of the shaft and the shell caused by thermal expansion or installation error, and can be used as a free end support.

4.The processing requirements for the shaft or housing bore are high, and the relative deviation of the axis of the outer ring after the bearing is installed should be strictly controlled to avoid the concentration of contact stress.

5.The inner or outer ring can be separated for easy installation and removal. The cylindrical rollers are in linear contact with the raceway and have a large radial load capacity. It is not only suitable for bearing heavy and shock loads, but also suitable for high-speed rotation.

The cylindrical roller bearings, raceways and rolling elements are geometrically shaped. After the improved design, it has a high bearing capacity, and the new structural design of the flange and roller end face not only improves the axial bearing capacity of the bearing, but also improves the lubrication conditions in the contact area between the roller end face and the flange, and improves the performance of the bearing.

The mechanical design manual is very detailed!! You can go and find it.

Cylindrical roller bearings Luoyang Longma Bearing **** There are many types of cylindrical roller bearings, which are distinguished by structure, including N, NF, NJ, NU, NUP, NCL, RN and RNU types. In terms of load capacity, there are ordinary and reinforced cylindrical roller bearings. The dimensions of the reinforced cylindrical roller bearing are the same as those of the ordinary type, but the diameter, length and number of rollers have increased, so the load bearing capacity has increased.

Distinguished by the number of rows of cylindrical rollers, there are single row and multi-row cylindrical roller bearings. Cylindrical roller bearings are divided into four rows of cylindrical rollers and double rows of cylindrical rollers, with high radial load capacity, but can not withstand axial forces, small radial size, high limit speed, because the inner ring has no flange, so the inner ring and outer ring assembly can be installed separately (with a full set of rollers and cage). This kind of bearing has the advantages of large radial load capacity, high rotation accuracy, and convenient installation and disassembly for all kinds of cold and hot rolling mills with frequent roll replacement.

It is suitable for work rolls or back-up rolls on various hot and cold rolling mills, billet openers and other rolling mills.

Cylindrical roller bearings are mainly used in compressors, pumps, wind energy equipment, gearboxes, unbalanced shakers and other equipment.

The main parameters of cylindrical roller bearings: heavy-duty and high-speed capabilities; Able to withstand axial displacement; It is a separable design.