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Cylindrical roller and raceway for the line of contact bearing. Large load capacity, mainly bear radial load. Ring wall and rolling friction is small, suitable for high-speed rotation. According to the ferrule has without ribs, can be divided into NU, NJ, NUP, N, NF single row cylindrical roller bearing, and NNU, NN double row cylindrical roller bearing. The bearing inner ring, the outer ring structure can be separated.
Inner ring or outer ring without rib of cylindrical roller bearing, the inner ring and the outer ring can move relatively to the axial direction, so it can be used as free end bearings. On one side of the inner ring and the outer ring of the double rib, the other side of the ring has a single rib of cylindrical roller bearings, can be a direction of the axial load to bear a certain degree of. General stamping steel cage, or copper alloy machined solid cage. But there is also a part of the use of polyamide forming the holder.
Single row cylindrical roller bearings are usually only by the radial force, compared with the same size ball bearings, radial load capacity is increased by 1.5-3 times, good rigidity, impact resistance, it is especially suitable for the rigid support, and the short supporting axle, thermal elongation caused by axial displacement of the shaft and the mounting and dismounting need separation machine type bearing accessories. Mainly used for large motor, spindle, before and after the engine support shaft, shaft support, train passenger train diesel engine crankshaft, automobile and tractor gear box etc..
Single row cylindrical roller bearings, which comprises an outer ring, an inner locking ring and cage. An annular groove is arranged between the outer wall of the stress surface of the outer ring, a plurality of locking ring groove on the outer wall of the outer ring, a locking ring shape and size and the locking ring groove shape and size to adapt. Locking ring groove is provided with a locking ring. The inner wall of an outer ring on the torus and stress groove corresponding part is provided with an annular retainer guide groove. The utility model has the advantages of convenient assembly, large bearing load, the advantages of high limiting speed, strong reliability, long service life etc..
Cylindrical roller thrust bearings are often combined into a high stiffness of the bearing configuration, can withstand heavy loads and vibration loads without difficulty. This kind of bearing can bear very big AxialLoad, but cannot withstand the radial direction load, they are not automatically aligning ability.
Thrust cylindrical roller thrust bearings can be split into a cylindrical roller and cage assembly, shaft ring and ring.