Wheel hub bearings mainly include single row tapered bearings, double row tapered roller bearings, and double row angular contact ball bearings.
Wheel hub bearings are one of the key components of automobiles, whose main function is to carry weight and provide accurate guidance for the rotation of the wheel hub. It is required that the wheel hub not only bear axial loads but also radial loads. The wheel hub bearing unit is developed on the basis of standard angular contact ball bearings and tapered roller bearings. It treats the two sets of bearings as a whole, has good assembly performance, can omit clearance adjustment, is lightweight, compact in structure, and has a large load capacity. For sealed bearings, lubricating grease can be preloaded, eliminating the advantages of outer wheel hub sealing and maintenance free. It has been widely used in automobiles and has a trend of gradually expanding its application in heavy-duty vehicles