grease from a standard grease fitting is distributed to the shaft through a groove in the outside diameter of the bearing and from radial holes in the bushing's well.
从标準润滑油嘴注入的润滑油通过轴承外径的环形槽分流到阀轴上,并且从径向孔流入轴衬壁上。
graphite impregnated 「iem」 type bushings. no grease fitting required. all lifters require one bushing at top of rod clearance hole (at pocket).