... .high density and hardness, high graphite bush bearing 1.We will select the most suitable graphite ... the working conditions of the bearing 2.The self-lubricating properties of carbon graphite and graphite materials, along ... lubricant material to improve the durability. 4.Therefore, carbon and graphite bearings, pistions, piston rings and ... District, Changsha City,Hunan,China carbon graphite bush bearing