Basic parameters of cylindrical roller bearings
A lot of cylindrical roller bearing Luoyang Longma Bearing Co. Ltd. cylindrical roller bearing type, according to the structure, N, NF, NJ, NU, NUP, NCL, RN and RNU. There are normal and reinforced cylindrical roller bearings to be distinguished by load capacity. The shape dimension of reinforced cylindrical roller bearings is identical with that of the common type, but the roller diameter, length and quantity are increased, so the load capacity is increased. Single column and multi column cylindrical roller bearings are distinguished by the number of columns in cylindrical roller. Cylindrical roller bearing is divided into four row cylindrical roller and cylindrical roller radial, high bearing capacity, but can not bear the axial force, radial small size, high speed limit, because without inner ring ribs can be installed so that the inner and outer components respectively (with a full set of roller and cage). This kind of bearing has many advantages such as large radial bearing capacity, high rotating accuracy, easy installation and disassembly. The utility model is suitable for working rolls or supporting rolls of various hot and cold mills, blank mills, etc.
But some also use polyamide forming cages. 1. roller and raceway for line contact or repair line contact, radial load capacity, suitable for heavy load and impact load.2., small friction coefficient, suitable for high speed, limit speed close to deep groove ball bearings.3. N and NU can move in axial direction, and can adapt to the change of relative position between shaft and shell caused by thermal expansion or installation error, and can be used as supporting end of free end.4. pairs of shafts or seat hole processing requirements are higher, the bearings installed after the outer ring axis relative skew should be strictly controlled, so as not to cause contact stress concentration.5. inner ring or outer ring can be separated, easy to install and disassemble. Cylindrical roller and raceway are in line contact, radial load capacity. The utility model is suitable for loading heavy load and impact load, and is also suitable for high-speed rotation.Cylindrical roller bearings, raceway and roll geometry. The improved design, has high bearing capacity, a new structure design of rib and roller end, not only improves the bearing capacity and axial, and rib roller end of the contact area to improve lubrication conditions, improve the bearing performance.
Cylindrical roller bearings cylindrical, roller, bearingCylindrical roller and raceway are line contact bearings. Load capacity, mainly bear radial load. The friction between the rolling body and the ring block is small and suitable for high speed rotation. According to the ring has no edge, can be divided into NU, NJ, NUP, N, NF and other single row cylindrical roller bearings, and NNU, NN and other double row cylindrical roller bearings. The bearing is a separable structure of inner ring and outer ring.Cylindrical roller bearings without inner sides of the inner ring or outer ring, whose inner and outer rings can be moved relative to the axial direction, so they can be used as free end bearings. The inner ring and the outer ring have double sides at one side, and the other side of the ring has a single block cylindrical roller bearing, which can bear the axial load in a certain direction. Generally use steel plate holder or copper alloy car body cage.
