What is the function of bearings?

Function: Bearings are an important part of modern mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during movement, and ensure rotation accuracy.

1. According to the different friction properties of moving components, bearings can be divided into two categories: rolling bearings and sliding bearings. Among them, rolling bearings have been standardized and serialized, but compared with sliding bearings, their radial size, vibration and noise are larger, and their prices are also higher.

2. Sliding bearings: Bearings that work under sliding friction. Sliding bearings work smoothly, reliably and without noise. Under liquid lubrication conditions, the sliding surfaces are separated by lubricating oil without direct contact, which can also greatly reduce friction loss and surface wear. The oil film also has a certain vibration absorption capacity, but the starting friction resistance is large.

3. Ball bearings: contain four basic components, namely balls, inner ring, outer ring and retainer. The balls are located between the inner ring and the outer ring. The retainer is responsible for keeping the balls at the same distance, so that the bearing can operate normally. Work.