Harbin Bearing Group Co., Ltd.

Description:
Product features
The inner ring or outer ring can be separated for easy installation and disassembly;
Large radial bearing capacity, suitable for bearing heavy load and impact load;
Small friction cofficient, suitable for high speed, limiting speed close to deep groove ball bearing;
NN type and NNU type can move axially and can be used as free end support;
The processing requirements of the shaft or seat hole are higher to prevent the relative deviation, so as
not to cause contact stress concentration.
Main areas

Large and medium-sized motors, rolling stock, machine tool spindles, internal combustion engines, generators, gas turbines, reducer boxes, rolling mills, shakers and lifting and transportation machinery, etc.

Cylindrical roller bearing for cylindrical roller, roller type of bearings is separable, convenient for installation and removal, according to the ring with or without rim, can have N , NU, NJ, NF, NUP for single-row cylindrical roller bearing, and NNU, NN and other are for double-row cylindrical roller bearing, in addition to multiple-rows cylindrical roller bearing, because the cylindrical roller bearing generally uses alloy turning solid cage or engineering material cage, when the speed is low and the load is large, it can be designed into a full roller structure without cage.
Because the cylindrical roller bearing roller and raceway for line contact, load cutting capacity is large, mainly support radial load, the rolling body and the drawing finger edge contact is small, suitable for high-speed rotation, the use of high coaxiality requirements, the inner or outer cylindrical roller bearing without retaining edge, its inner ring and outer ring can be relative to the axial movement, so it can be used as a free end bearing, the inner ring and the outer ring on one side double rib, the other side of the ring has a single rib of the cylindrical roller bearing, can withstand a certain degree of single direction axial load.
HRB cylindrical roller bearing is known for its long life, professional design makes the bearing maximize the radial load cutting ability at the same time, different axial load capability, HRB for railway vehicles to provide chart column deep bearing using internal control thermal process method, so that the bearing surface has a stable compressive stress, as well as the overall excellent impact resistance.
Double-row bearing

NNNNU type

NN type bearing outer ring without retaining edge: both sides of the inner figure have retaining edge in the middle of the retaining edge, which can allow the thin relative bearing seat to produce two directions of displacement in the axial direction, NNU type bearing two pairs have retaining edge in the middle of the inner ring without retaining edge, which can allow the shaft to produce two directions of displacement between the relative bearing seat in the axial direction.