EXTERNAL GEARING HYDRAULIC MACHINE Russian patent published in 1996 - IPC

FIELD: transport; hydraulic systems of tractors, excavators, agricultural, road building and other vehicles. SUBSTANCE: sliding bearings are made in form of thin-walled semi-inserts installed in bores made in bushings. Bearings are oriented square to direction of action of resulting hydraulic loads F acting onto gears under working fluid pressure. Recesses are made on bushings. Semi-inserts are locked from turning by cutting made on end face surfaces of semi-inserts getting into recesses of bushings and located on their end faces from side of gear end faces. Thus additional movable link is formed which makes it possible not to affect displacement of bushings in axial direction and to permit self-aligning of bushings relative to gear end faces. EFFECT: increased reliability and longevity of hydraulic machine. 3 cl, 3 dwg