轮毂轴承（hub bearing）的主要作用是承重和为轮毂的转动提供精

The main role of the hub bearing (hub bearing) of weight-bearing and provide an accurate guide for the rotation of the hub, both axial load and radial load, is a very important component. A conventional automobile wheel bearing consists of two tapered roller is a roller or ball bearing combination, the bearing mounting, oiled, and the seal clearance adjustment is carried out in the automotive production line. This structure makes it difficult to assemble in automobile production plant, high costs, poor reliability, maintenance and automotive repair point, the bearings need cleaning, oiling and adjustment. Developed on the basis of the hub bearing unit is in the standard angular contact ball bearings and tapered roller bearings, the two bearings as a whole will have good assembling performance, clearance adjustment can be omitted, light weight, compact, load bearing capacity large, sealed bearing grease in advance charged, and will be omitted from the outer hub seal maintenance, etc., have been widely used in cars, the truck also has a tendency to gradually expand the application.

The main function of hub bearing (hub bearing) is to carry load and provide precise guidance for the rotation of the hub, which is a very important component, both axial and radial. Traditional automotive wheel bearings are made up of two sets of cone roller bearings or ball bearings, and the installation, oiling, sealing and clearance adjustment of the bearings are carried out on the automotive production line. This structure makes it difficult to assemble, cost and poor reliability in automotive production plants, and bearings need to be cleaned, oiled and adjusted when the vehicle is maintained at the service point. Hub bearing unit is based on the standard angle contact ball bearings and conical roller bearings developed, it will be two sets of bearings as a whole, with good assembly performance, can be omitted play adjustment, light weight, compact structure, load capacity, sealed bearings can be loaded in advance grease, omitted external hub seals and exempt from maintenance and other advantages, Has been widely used in cars, in heavy-duty vehicles also have a gradual expansion of the application of the trend.

The main function of hub bearing is to bear the load and provide accurate guidance for the rotation of hub. It bears both axial and radial loads, and is a very important part. The traditional bearings for automobile wheels are composed of two sets of tapered roller bearings or ball bearings. The installation, oiling, sealing and clearance adjustment of bearings are all carried out on the automobile production line. This kind of structure makes it difficult to assemble, high cost and poor reliability in the automobile factory. In addition, when the automobile is maintained in the maintenance point, the bearings need to be cleaned, oiled and adjusted. Hub bearing unit is developed on the basis of standard angular contact ball bearing and tapered roller bearing. It integrates two sets of bearings, and has the advantages of good assembly performance, omitting clearance adjustment, light weight, compact structure, large load capacity, fitting grease in advance for sealed bearing, omitting outer hub sealing and avoiding maintenance. It has been widely used in cars There is also a trend of gradually expanding the application of trucks.<br>