The most commonly used metal sliding bearing ,Rolled wrapped Bronze Bushings Metricis the three-layer composite bearing. The bearing is generally made of carbon steel plate as the substrate. The spherical copper,DU Flanged Bushing powder is first sintered on the steel plate by sintering technology, and then a layer is sintered on the copper powder layer. The more 0.03mm PTFE lubricant; the middle layer of spherical copper powder is mainly used to strengthen the bonding strength between the steel plate and PTFE, and of course, it also plays a certain role in Spherical shape bronze sleeve bearing and lubrication.