What is the role of ball bearings?

Ball bearings are a type of rolling bearings. Spherical alloy steel balls are installed between the inner and outer steel rings to reduce friction and improve the efficiency of mechanical power transmission in a rolling manner. Ball bearings cannot withstand heavy loads and are more common in light industrial machinery. Ball bearings are also called ball bearings.
The hardness of the ball bearing and the cage is lower than that of the ball and ring, and the material is metal (such as: medium carbon steel, aluminum alloy) or non-metal (such as: Teflon, PTEF, polymer materials). Rolling bearings (rolling bearings) have lower rotational frictional resistance than journal bearings, so at the same speed, the temperature due to friction will be lower.
Ball bearings are generally used in low-load mechanical transmission equipment. Because the bearing area of ​​ball bearings is small, serious mechanical damage is prone to occur in the case of high-speed operation, so in heavy-duty mechanical transmission, needle bearings are often used to increase the bearing surface to increase the mechanical transmission efficiency and reduce Mechanical injury.
The ball bearing changed the friction method of the bearing and adopted rolling friction. This method effectively reduced the friction between the bearing surfaces and increased the service life of the fan bearing, thus extending the service life of the radiator. The disadvantage is that the process is more complicated, the cost increases, and it also brings higher working noise.
In terms of its function, it should be a support, which is literally used to support the shaft, but this is only a part of its function. The essence of support is to be able to bear radial loads. It can also be understood that it is used to fix the shaft. It is to fix the shaft so that it can only rotate, and control its axial and radial movement.