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The thin-walled bearing has simple structure and convenient use. It is mainly used to bear radial load, but when the radial clearance of bearing becomes larger, it has certain performance of angular contact ball bearing and can bear combined radial and axial load. When the rotating speed is high and it is not suitable to use thrust ball bearings, they can also be used to bear pure axial load. Compared with other types of bearings of the same size, this type of bearing has small friction coefficient and high limit speed. However, it is not resistant to impact and is not suitable for bearing heavy loads.

Thin-walled bearing (thin-walled bearing with constant section) has the same structure as angular contact ball, but its wall thickness is small, its width is narrow, and its processing is difficult. Constant section thin-walled ball bearings are mainly used in aerospace, medical machinery, mechanical devices and other industries, and have very strict requirements for installation space.
Precautions when using thin-walled bearings:
1. Ensure that the storage and surrounding environment of thin-walled bearings are clean. Even if tiny dust enters the thin-walled bearing, it will increase the wear, vibration and noise of the thin-walled bearing.
2. When installing thin-walled bearings, it is forbidden to punch holes forcibly, because the grooves of thin-walled bearings are very shallow, and the inner and outer rings are also very thin. If you press hard, it will cause damage such as separation of bearing inner and outer rings. Therefore, during installation, it is necessary to determine the production and installation clearance range with the manufacturer first, and cooperate with the installation according to the clearance range.
3. In order to prevent the thin wall bearing from rusting, it is necessary to ensure that the storage environment is dry, free of moisture, and stored at a certain distance from the ground. When taking out the bearing, be sure to wear clean gloves to prevent moisture or sweat from sticking to the bearing and causing corrosion.
4. In the process of using thin-walled bearings, if they are improperly used or poorly matched, the expected effect of thin-walled bearings will not be achieved, so pay attention to the above details when using thin-walled bearings.
In order to prevent the bearing from rusting during transportation and use, the manufacturer usually carries out anti-rust treatment on its surface when producing the bearing. Some factories have good anti-rust treatment technology, while others have poor anti-rust treatment technology. And the surface of parts produced by this technology has no obvious oil stain. If the quality of thin-walled bearings is only observed from the surface, the really high-quality thin-walled bearing surface should be crow color. Is this crow color caused by the use standard of thin-walled bearings and the grinding process of the cutting fluid used and their mutual influence, such as the pure color effect of the first two?
Chamfer is the joint between two different faces of a part. For parts with poor quality, their chamfering is uneven. In addition, in order to increase the hardness of thin-walled bearings, the chamfer of thin-walled bearings after heat treatment such as quenching is black, which will make many people mistakenly believe that it is caused by incomplete processing. Actually not. It just reflects the processing method of thin-walled bearing.