Bearing classification:
1. According to the structure type of rolling bearing, it is classified into centripetal bearing, thrust bearing, axial contact bearing and thrust angular contact bearing.
2. According to the type of its rolling body, it is divided into ball bearings and roller bearings. According to the type of roller bearings, and divided into: cylindrical roller bearings, needle roller bearings, tapered roller bearings, self-aligning roller bearings. Bearings can be divided into self-aligning bearings and non-self-aligning bearings according to whether they work or not.
3. According to the size of rolling bearings, there are: miniature bearings, small bearings, small and medium-sized bearings, medium and large bearings, large bearings, super large bearings.