TH-1 is wall wrapped bearings made of triple layer composites material which consists of a steel backing,a sintered porous bronze particles interlayer and calendared with PTFE and pb mixture as surface layer. It is of low friction coefficient, anti-wear, anti-corrosion and can be used without oil, or only a trace of oil is needd.Moreover, it is of low cost, low vibration and low noise, compact and light.TH-1 is widely applied in various sliding articles of different kind of machines such as textile machines, tobacco machines, hydraulic vehicles, automobiles, agriculture and forests machines and so on.