Cylindrical roller bearing

Cylindrical roller bearings belong to precision bearings, which are composed of cages, rollers, and guide shaft rings, and can be separated from another bearing ring. They are separable bearings. Common types include single row cylindrical roller bearings, double row cylindrical roller bearings, fully loaded cylindrical roller bearings, and four row cylindrical roller bearings;

Among them, single row cylindrical roller bearings can be divided into NU type, NJ type, NUP type, and N type designs based on different retaining structures;

Double row cylindrical roller bearings have two types of inner ring designs: cylindrical hole and conical hole; According to its structure, there are two types: NNU type and NN type.

Full cylindrical roller bearings are divided into two types: NCF type and NJG type single row full cylindrical roller bearings, and NNC type, NNCF type, NNCL type, NNF type double row full cylindrical roller bearings.

Cylindrical roller bearings have the characteristics of high load, low noise, and high rotational speed, and have low friction between the rolling element and the collar edge, making them suitable for high-speed rotation.

Single row cylindrical roller bearing: It has a large radial load-bearing capacity and is easy to install, disassemble, and clean; Capable of withstanding heavy radial loads and high rotational speeds;

The double row cylindrical roller bearing has a compact structure, high load capacity, and high rigidity. Using solid brass cages made from cars; Its separability also makes installation and disassembly very convenient;

Full cylindrical roller bearings can withstand larger loads, while single row full cylindrical roller bearings can withstand larger radial loads and axial loads on one side. Double row fully loaded cylindrical roller bearings can be used as axial positioning or non positioning bearings.

Four row cylindrical roller bearings usually use surface hardened carburized steel to improve wear resistance and impact load resistance, and the cage is usually a machined steel cage or a column cut cage.

The NU and N types of single row cylindrical roller bearings cannot withstand axial loads and should be used for equipment free side bearings. NJ, NUP, NH, and NF types can withstand a certain degree of axial load and can be used as fixed side bearings for equipment.

Double row cylindrical roller bearings are mainly used in machine tools, rolling mills, drums, grinders, and large gearboxes; For example, machine tool spindles requiring thin-walled bearings, rollers for steel rolling machinery, and rollers for printing machinery are required;

Fully loaded cylindrical roller bearings are suitable for places with medium to low speeds and high loads, such as construction machinery, vehicles, steel, lifting machinery, etc.

Four row cylindrical roller bearings are particularly suitable for supporting rolls that require high speed and precision, such as wire rolling mills, profile rolling mills, thin plate cold and hot rolling mills, and billets.

Anrui bearings are mainly engaged in the development and production of alternative imported and domestic high-end cylindrical bearings. Currently, the main processing size range is products with an inner diameter of 20-200mm and an outer diameter of less than 40-600mm (N series, NJ series, NU series, NUP series, NN series, NNU series).

The main supporting markets include industries such as automobiles, compressors, agricultural machinery, engineering machinery, wind power generation, mining machinery, textile printing, precision machine tools, etc.