... conditions of the bearing 2.The self-lubricating properties of carbon graphite and graphite materials, along with stability at elevated temperatures ... use normal lubricant material to improve the durability. 4.Therefore, carbon and graphite bearings, pistions, piston rings and sealing rings are ... Wan,Pengjia Xiang,Laodaohe Town,Kaifu District, Changsha City,Hunan,China carbon graphite bush bearing