Cylindrical Roller

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