Plastic bearings provided by SSYTT include anti-corrosion bearings (made of PVDF or PTFE), precise bearings (made of POM or PA), anti-acid and anti-alkali bearings (made of HDPE or PP or UPE), high temperature bearings (made of PEEK or PI), etc. Which have the performance of corrosion and wear resistance, reduce vibration and anti-bump, are free from the maintenance and so forth.