Graphite bearing graphite material as the main base, used in bearing aspects of food, beverages, textiles, chemicals and other industrial sectors in the transport and drying machines, textile machines, submersible pumps, motors, etc., these areas will inevitably cause lubricant grease pollution, self-lubricating graphite bearings are highly corrosion-resistant, without the use of lubricants and long-term operation in order to improve the mechanical strength of the product, in particular in order to improve impact resistance, toughness, wear some good common fusible metal is dipped