What is the China Cylindrical roller bearings？
China Cylindrical roller bearings are bearings that use cylinders as rolling elements, unlike balls in ball bearings. In bearings of this type, the cylindrical rollers bearings are in linear contact with the raceways. They have a high radial load capacity and are suitable for high speeds. There are different types designated as NU, NJ, NUP, N, NF (for single-row bearings), NNU, and NN (for double-row bearings depending on the design or absence of side ribs) .
Classification of Cylindrical roller bearings
The outer and inner rings of all types are separable. Some cylindrical roller bearings have no ribs on either the inner or outer ring, so the rings can move axially relative to each other. These can be used as free-end bearings. Cylindrical roller bearings, in which either the inner or outer rings have two ribs and the other ring has one, are capable of taking some axial load in one direction Double-row cylindrical roller bearings have high radial rigidity and are used primarily for precision machine tools. Pressed steel or machined brass cages are generally used but sometimes molded poly-amide cages are also used.
Applications of Cylindrical Roller Bearings :
Cylindrical Roller Bearings are widely used in multiple industries, pumps and compressors, mechanical presses, electric motors, gearboxes, traction motors and axle bearings for railway vehicles, in steelworks and in many other industrial applications. The combination of high load capacity, moderate speed rating, and industry interchangeability make it one of the most popular bearing designs.
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