Development of wheel bearings

   Traditional automotive agricultural bearings is composed of two tapered roller bearings or ball bearing combination, bearing installation, oiled, sealed and adjust clearance are carried out in the car on the production line. This structure makes it difficult in a car assembly plant, high cost, poor reliability, and maintenance car maintenance, but also the need for bearing cleaning, oiling and adjustment.
    Developed on the basis of the hub bearing unit is the standard angular contact ball bearings and tapered roller bearings on, it will be two sets of bearings as a whole, with good assembly performance can be omitted clearance adjustment, light weight, compact structure, load capacity large, sealed linear plain bearings grease can be loaded in advance, hub seals and omitted from the outside wheel maintenance, etc., has been widely used in cars, and in the truck also has a tendency to gradually expand the application.
    Car wheel bearings are used in pairs over most single row tapered roller or ball bearings. With the development of technology, the car has been widely used car wheel units. Growing scope and use of the hub bearing unit, has now developed to the third generation:
The first generation is a double row angular contact bearing components.The
second generation of the outer raceway has a flange for fixing the crane bearing

, the bearing sleeve may simply be fixed with a nut on the axle. So that the vehicle maintenance becomes easy.The third generation wheel hub bearing units are used bearing unit and ABS anti-lock brake system fitted. Wheel hub unit is designed to have the inner flange and outer flange, the inner flange is bolted to the drive shaft, the entire bearing outer flange fit together.