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Hub bearing is one of the key parts of automobile. Its main function is to carry the weight and provide accurate guidance for the rotation of hub, which requires it not only to bear axial load but also radial load.

Related background

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.

Wheel hub bearing

Ball bearing

It is developed on the basis of standard angular contact ball bearing and tapered roller bearing. It takes two sets of bearings as a whole. It has the advantages of good assembly performance, omitting clearance adjustment, light weight, compact structure, large load capacity, pre loading grease for sealed bearing, omitting external hub sealing and avoiding maintenance. It has been widely used in cars and trucks. There is a trend of gradually expanding application.

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