The metal composite self-lubricating material is made of high-quality low-carbon steel as the substrate, with a spherical porous copper powder layer sintered in the middle, and a wear-resistant lubricating material mainly made of PTFE tied on the surface as the bearing working layer. This material has excellent mechanical bearing capacity, and the middle copper powder layer can not only timely transfer the heat generated during the operation of the bearing, but also improve the bonding strength between the plastic layer and the substrate. PTFE design is suitable for completely dry friction state, and various materials have been developed based on lubrication conditions, friction coefficient, and durability requirements. The PTFE metal composite material of SF-1 can provide the best performance in the widest range of loads, speeds, and temperatures, with or without external lubrication.