The main function of automobile hub bearing is to bear load and provide accurate guidance for the rotation of wheel hub. It not only bears axial load but also bears radial load. It is a very important part.
The traditional automobile wheel bearing is composed of two sets of tapered roller bearings or ball bearings. The installation, oiling, sealing and clearance adjustment of bearings are carried out on the automobile production line.
This structure makes it difficult to assemble in the automobile factory, high cost and poor reliability. Moreover, when the automobile is in the maintenance point, the bearing needs to be cleaned, oiled and adjusted.