Summary of knowledge about the use of bearings

The knowledge of bearings, the structure of bearings, and the production process of bearings. Bearings are mechanical parts that support shafts, guide the rotation of the shaft, and withstand the forces transmitted by the shaft. Bearings can be divided into rolling bearings and sliding bearings. Generally speaking, bearings refer to rolling bearings.

The function of a bearing is to reduce conflicts, bear loads, and guide transmission. It is a precision mechanical component called a rolling bearing that converts sliding conflicts between the working shaft and the shaft seat into rolling conflicts, thereby reducing conflict losses. Sliding bearings are bearings that operate under sliding conflicts.

The operation of sliding bearings is smooth, reliable, and noise free. Under smooth liquid conditions, the sliding surface is separated by smooth oil without direct contact, which can greatly reduce conflict losses and surface wear. The oil film also has a certain ability to absorb vibrations. But the starting conflict resistance is relatively high. The part of the shaft supported by bearings is called the journal, and the parts that match the journal are called the bearing shells.

The anti friction material layer cast on the inner and outer surfaces of the bearing in order to improve the conflicting nature of the bearing shell is called a bearing liner. The data of bearing shells and bearing liners are collectively referred to as sliding bearing data. The application of sliding bearings is generally under low-speed and heavy load conditions, or in working areas where it is difficult to protect, maintain, and add smooth oil.