Using a variety of high-quality plastic injection molding process, it suitable for mass production, low manufacturing cost. Self-lubricating performance can be maintenance-free oil-free, high carrying capacity, no bite shaft phenomenon, good corrosion resistance, low coefficient of friction compared to metal-based bearings, light weight, low production costs, high production efficiency. Widely used in motor vehicles industry, fax machines, copiers, food machinery, fitness machinery, chemical industry, etc.