PEEK bushing has the advantages of high temperature resistance, wear resistance, corrosion resistance, self-lubrication and the like. Compared with metal materials, it has the advantages of light weight and low noise. PEEK has the heat resistance, chemical stability of thermosetting plastics and the processing ability of thermoplastic molding. PEEK has a long-term service temperature of about 260-280°C, a short-term service temperature of 330°C, and a high pressure resistance of up to 30MPa.