Cylindrical roller bearing capacity is large, mainly bear radial load. The friction between the rolling body and the rim of the ring is small, suitable for high-speed rotation. According to whether the ring has a guard, it can be divided into NU, NJ, NUP, N, NF and other single row bearings, and NNU, NN and other double row bearings. The bearing is a separable structure with inner and outer rings. Cylindrical roller bearings with inner or outer rings without guards, whose inner and outer rings can move relative to each other in the axial direction, so they can be used as free-end bearings. One side of the inner ring and the outer ring has a double guard, and the other side of the ring has a single guard cylindrical roller bearing, which can bear a certain degree of axial load in one direction. Generally use steel plate stamping cage, or copper alloy cage. But some use polyamide forming cages.

Features

1.Roller and raceway are line contact or repair line contact, with large radial bearing capacity, suitable for bearing heavy load and impact load.
2.Low friction coefficient, suitable for high speed, limit speed close to deep groove ball bearings.
3.N type and NU type can move axially, can adapt to the change of the relative position between the shaft and the shell caused by thermal expansion or installation error, can be used as free end support.
4.The processing requirements of shaft or seat hole are higher, and the relative deflection of the outer ring axis after bearing installation should be strictly controlled, so as not to cause contact stress concentration.
5.The inner ring or outer ring can be separated for easy installation and disassembly.

Main uses

Large and medium-sized motor, rolling stock, machine tool spindle, internal combustion engine, generator, gas turbine, reducer, rolling machine, vibrating screen and lifting machinery.