The basic knowledge of bearings, the definition and function of bearings

What is a bearing? What is the role of bearings? The persons of mechanical manufacturing design should all have the same feeling, Bearing is an important part of contemporary mechanical equipment. Its main function is to support mechanical rotation, reduce its friction coefficient and ensure its rotation accuracy.

The role of bearing is to put it bluntly, if the transmission parts (such as: shaft) and the hole are matched directly, a transmission resistance is large, and after the wear is large, the transmission parts are not easy to replace, and the bearing is dependent on the rolling contact between components to support the transmission parts, so the sliding resistance is small, less power consumption, easy to start and so on.

The main function of bearing is to support the mechanical rotating body, reduce the friction coefficient in the process of its movement, and ensure its rotation accuracy. It can be understood that it is used to fix the axis, so that it can only achieve rotation, but control its axial and radial movement. If the shaft doesn't have bearings it won't work at all. Because the axis can move in any direction, and the work requires that the axis can only be rotated.

Bearings have a wide range of uses, automotive: rear wheels, transmission, electrical equipment components. Electrical: general motors, household appliances. Instrument, internal combustion engine, construction machinery, railway rolling stock, loading and unloading and handling machinery, various industrial machinery. Machine tool spindle, agricultural machinery, high frequency motor, gas turbine, centrifuge, small car front wheel, differential pinion shaft.

Oil pump, Roots blower, air compressor, all kinds of transmission, fuel injection pump, printing machinery, motor, generator, internal combustion engine, gas turbine, machine tool spindle, reduction device, loading and unloading handling machinery, all kinds of industrial machinery, etc. Almost as long as it is rotating are used to bearings.