Seal and lubrication of this series ticone bit
The advanced matal seal package consists of two matal seal  and two elastic energizes compressen energizers ensure good contact being kept on two sealing surfaces of metal rings by elastic force and  achieve the bearing seal . In the drilling ,metal seal are relatively dynamic , and the energizers are static, this will improve the reliability and durability of bearing seal ,the pressure durability of bearing seal ,the pressure compensator system and advanced grease can greatly increase the lubricating reliability .