Cylindrical roller and raceway are linear contact bearings. Large load capacity, mainly bear radial load. The rolling body has little friction with the ring retaining edge and is suitable for high-speed rotation. According to the ring with or without rib, can be divided into Nu, NJ, NUP, N, NF single-row cylindrical roller bearings, and NNU, NN double-row cylindrical roller bearings. The bearing is an inner ring, outer ring can be separated structure. Cylindrical roller bearings with no flanges on the inner or outer rings, where the inner and outer rings can be moved relative to the axial direction, can be used as free-end bearings. Cylindrical roller bearings with double ribs on one side of the inner ring and the outer ring and a single rib on the other side of the ring can withstand a certain degree of axial load in one direction. General use of steel plate stamping cage, or copper alloy vehicle-made solid cage. But some use polyamide to form cages.
