Cylindrical roller bearing

The rolling element is a centripetal rolling bearing of cylindrical rollers. The internal structure of cylindrical roller bearings adopts a parallel arrangement of rollers, with spacing retainers or isolation blocks installed between the rollers to prevent tilting or friction between the rollers, effectively preventing an increase in rotational torque. The cylindrical roller and raceway are linear contact bearings. Large load capacity, mainly bearing radial loads. The friction between the rolling element and the collar edge is small, suitable for high-speed rotation. According to the presence or absence of ribs on the ring, it can be divided into single row cylindrical roller bearings such as NU, NJ, NUP, N, NF, and double row cylindrical roller bearings such as NNU and NN. The bearing is a separable structure with inner and outer rings. Mainly used for large and medium-sized electric motors, locomotives and vehicles, machine tool spindles, internal combustion engines, generators, gas turbines, reducers, rolling mills, vibrating screens, and lifting and transportation machinery.