The cylindrical roller is in line contact with the raceway, and has a large radial load capacity, which is suitable for bearing heavy loads and impact loads. It is also suitable for high-speed rotation of N-type and NU-type axial movement, and can be adapted to thermal expansion or installation error. The change of the relative position between the shaft and the outer casing is most suitable for the free end bearing type NJ and NF type to withstand a certain degree of unidirectional axial load. The NH type and NUP type can withstand a certain degree of bidirectional axial load inner or outer ring. It can be separated, and it is easy to assemble and disassemble NNU type and NN type. It is strong in rigidity against radial load, and it is mostly used for machine tool spindle.

Mainly applicable cages: steel stamping cages (Z-shaped), copper alloy cutting cages, pin cages, synthetic resin forming cages.

Main uses: medium and large motors, generators, internal combustion engines, gas turbines, machine tool spindles, reduction gears, loading and unloading machinery, various industrial machinery.

主要用途：中型及大型电动机、发电机、内燃机、燃汽轮机、机床主轴、减速装置、装卸搬运机械、各类产业机械。