Thrust flange actuated rock bit lubrication system

摘要: Lubricant is circulated from a lubricant reservoir to the bearings of rotary rock bit and back by circulation system that operated rotation cone cutter upon bearing pin bit. A seal positioned between rolling arm maintain in area prevent fluid borehole entering area. located body. first passage connects with channel second extends allow be channeled reservoir. groove thrust flange operates as viscous or ram pump when rotating against thereby providing pumping action circulate through said