PAI pepper balls and PAI pepper balls made of high-performance PAI polymers are widely used in electronic products, food and beverage packaging machinery, auto parts, sensors and other fields. Compared with common metal balls such as steel balls and stainless steel balls, PAI pepper balls have irreplaceable advantages:1. PAI pepper balls have very good friction resistance and strong self-lubricating properties.2, the compressive strength is high, the impact ability is strong, and the strength is equal to that of a metal ball.3, high temperature resistance, in the working temperature of 200 degrees, can not be deformed.4. The specific gravity is light, which is one third of the weight of metal.5, and the metal seat wants to cooperate with each other, which is not harmful to the metal seat and is too destructive.6, very low noise, especially suitable for low-noise institutions and equipment.7, good machining performance, can adapt to the impact transmitted by the high-speed operation of the bearing is too high temperature.8, very good chemical corrosion resistance, only a few chemicals can cause trace corrosion to PAI pepper balls. It can be used in chemical working environment for a long time.9, under the condition of low temperature and high temperature can maintain very stable physical properties.