N306 Cylindrical roller bearing

The rolling element of cylindrical roller bearing is a cylindrical roller, which is in line contact with the raceway. It has a large load capacity and mainly bears radial loads. The friction between the rolling element and the ring edge is small, making it suitable for high-speed rotation. According to the presence or absence of the ring edge, 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. The friction between the rolling element and the collar edge is small, suitable for high-speed rotation, and requires high coaxiality during use. Cylindrical roller bearings without retaining edges on the inner or outer rings can move relative to the axial direction, so they can be used as free end bearings. A cylindrical roller bearing with double ribs on one side of the inner and outer rings, and a single rib on the other side of the ring, which can withstand a certain degree of unidirectional axial load.

Product Features

The inner or outer ring can be separated for easy installation and disassembly;

Large radial bearing capacity, suitable for withstanding heavy and impact loads;

Low friction coefficient, suitable for high speeds, with limit speeds close to deep groove ball bearings;

N-type and NU type can move axially and be used as free end support;

The machining requirements for shafts or seat holes are high, to prevent relative deviation and avoid contact stress concentration.

Application industry

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.