Method and apparatus for preventing the wear between the outer ring of a bearing and its seat surface in the case of ship shafts bearings

摘要

A system is disclosed for mounting a bearing assembly in the stern-post of ships in order to minimize wear between the outer ring of the bearing assembly and a bearing seat and where the inner ring is mounted on a propeller shaft. The system comprises two axially spaced pressure chambers interconnected by a conduit and adjacent opposite axial ends of the outer ring, a hydraulically operable piston in each of the chambers, a pump for pressurizing the chambers, and pressure valves in the conduit for limiting the fluid flow between the chambers and operable to permit fluid flow between the chambers-to balance the pressure in the chambers when the pressure in either chamber exceeds a predetermined level.