JF-20 high-tin aluminum-based bearings are made of low-carbon steel plates as the matrix and rolled AlSn20Cu materials on the surface. This product has the characteristics of medium fatigue strength and bearing capacity, good corrosion resistance, and good bearing sliding performance. It is often used for small and medium power internal combustion engine bearings, train engine bearings, air press bushings, refrigerator bearings, etc. It is a novel product that replaces babbit alloy.