Cylindrical roller bearing

Cylindrical roller and raceway are linear contact bearings. Large load capacity, mainly bearing radial load. The friction between the rolling body and the ferrule is small, and it is suitable for high-speed rotation. According to whether the ferrule has a flange, it can be divided into single row cylindrical roller bearings such as Nu, NJ, NUP, N and NF, and double row cylindrical roller bearings such as NNU and NN. The bearing is a structure in which the inner ring and the outer ring can be separated. Cylindrical roller bearing with inner ring or outer ring without flange can be used as free end bearing because the inner ring and outer ring can move relatively in the axial direction. A cylindrical roller bearing with double flanges on one side of the inner ring and the outer ring, and a single flange on the other side, can withstand a certain degree of axial load in one direction. Generally, steel plate stamping cages or copper alloy turning solid cages are used. But some of them use polyamide shaped cages.