Semi Trailer Axle There are two kinds of axles, one-piece axle tube and welded tube, solid axle head, long service life.High-quality non-asbestos environmental protection friction plate, good performance, easy to replace. Bearings are high-frequency hardened, with large bearing capacity, high speed and safe use. The tire bolts are made of alloy steel with high strength. Equipped with two positioning sleeves. ModelLoading CapacityTrack Axle website:http://www.vmsemitrailer.com/t....railer-parts/semi-tr