Wheel hub bearing for automobile was combined by two sets of tapered roller bearing or ball bearings in the past, which does cause some problems, like assembly difficulty, high cost, unreliability while auto repair stores need to do clean as well as oiling and adjustment before use. But wheel hub bearing unit is developed based on standard angle contact ball bearing and tapered roller bearing, which are made into one bearing for great assembling behavior, light weight, free-maitenance, and so on. This wheel hub bearing unit has been valued in automobile field. |