An article takes you to understand the role of bearings

  The function of the bearing is to play a supporting role. If the transmission part (such as: shaft) is directly matched with the hole, the transmission resistance will be large, and the transmission part will not be easy to replace after the wear is large, and the bearing relies on the rolling contact between the components. It supports the transmission parts, so the sliding resistance is small, the power consumption is low, and the starting is easy.

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

  Bearings are widely used; automobiles: rear wheels, transmissions, electrical device components; electrical: general electric motors, household appliances. Instruments, internal combustion engines, construction machinery, railway vehicles, loading and unloading machinery, and various industrial machinery. Machine tool spindles, agricultural machinery, high-frequency motors, gas turbines, centrifugal separators, small car front wheels, differential pinion shafts.Oil pumps, Roots blowers, air compressors, various transmissions, fuel injection pumps, printing machinery, electric motors, generators, internal combustion engines, gas turbines, machine tool spindles, reduction gears, handling machinery, various industrial machinery, etc. Almost as long as it is rotating and rotating, bearings are used.