Cylindrical roller bearing

Cylindrical roller bearing rolling body for the cylindrical roller, belong to the separable bearing, convenient installation and disassembly. According to the collar with or without retaining edge, can be divided into N, NU, NJ, NF, NUP and other single row cylindrical roller bearing, and NNU, NN and other double row cylindrical roller bearing, in addition to multi-row cylindrical roller bearing. Cylindrical roller bearing generally use copper alloy turning entity keep frame or engineering plastic keep frame, when the speed is low load, can be designed into no keep frame full roller structure.

Cylindrical roller bearing roller and raceway for line contact, load capacity, mainly bear radial load. Rolling body and the sleeve edge friction is small, suitable for high-speed rotation, the use of coaxiality requirements are high. Inner ring or outer ring without baffle cylindrical roller bearing, its inner ring and outer ring can be axially for relative movement, so can be used as a free end bearing. In the inner circle and outer circle of a side of the double retaining edge, the other side of the collar has a single retaining edge of the cylindrical roller bearing, can bear a certain degree of single direction axial load.

Cylindrical roller bearing are renowned for their long life and are designed in a professional manner so that the bearing have a certain degree of axial load capacity while maximising radial load capacity. The cylindrical roller bearing supplied for railway vehicles use an internally controlled thermal process method to provide a stable compressive stress on the bearing surface, as well as overall excellent impact resistance.

Single row cylindrical roller bearing

N, NU type

N type bearing have no retaining edge on the outer ring and retaining edge on both sides of the inner ring, which can allow displacement between the shaft relative to the bearing housing in both directions in the axial direction, NU type bearing have retaining edge on both sides of the outer ring and no retaining edge on the inner ring. Can also allow the shaft relative to the bearing seat between the two directions in the axial displacement, therefore, this type of structure is suitable for use as a swimming end bearing.

NJ, NF type

NJ type bearing outer ring on both sides of the retaining edge, inner ring single side of the retaining edge. NF type of outer ring single side of the blocking edge, the inner ring on both sides of the blocking edge. Can also withstand a certain amount of one-way axial load. Therefore, this type of structure is suitable for use as a single direction axial positioning bearing.

NUP type

NUP type bearing is the outer ring on both sides of the retaining edge, the inner ring on one side with (fixed) single retaining edge, while the other side for the separable flat retaining ring, can bear a certain amount of two-way axial load.

Product characteristics

Separable inner or outer ring, easy to install and dismantle;

high radial load carrying capacity, suitable for heavy loads and shock loads;

small coefficient of friction, suitable for high speed, limit speed close to deep groove ball bearing;

N and NU type can be moved axially, can be used as free end support;

The processing requirements of the shaft or seat hole are high, to prevent relative deflection, so as not to cause contact stress concentration.

Main fields

Large and medium-sized motors, rolling stock, machine tool spindles, internal combustion engines, generators, gas turbines, reduction gearboxes, rolling mills, vibrating screens and lifting and transport machinery.