PEEK is a special engineering plastic with excellent heat resistance, chemical corrosion resistance, wear resistance, and good mechanical strength. The high wear resistance of PEEK ensures that even in harsh working environments such as high temperature, high humidity, and highly corrosive media, the surface of the shaft sleeve can remain smooth, reducing friction coefficient, lowering energy consumption, and improving overall efficiency. Compared with traditional metal shaft sleeves, PEEK processed shaft sleeves can easily withstand the erosion of various strong acids, alkalis, and organic solvents, and maintain long-term stable working conditions.