THRUST COLLAR FOR EXHAUST GAS TURBINE SUPERCHARGER

摘要

PROBLEM TO BE SOLVED: To provide a thrust collar for an exhaust gas turbine supercharger capable of reducing the fretting corrosion generated between a sleeve, the thrust collar and a rotor shaft and prolonging the service life of components without giving an adverse effect to the oil film formation of a thrust bearing. SOLUTION: This thrust collar for the exhaust gas turbine supercharger feeding air to a ship diesel engine is provided with a thrust collar body 44M supported on the thrust bearing 45 rotatably together with the rotor shaft 6 and kept in face contact with the stepped stopper face 6a of the rotor shaft and a flange 44F protruded to the sleeve side from the thrust collar body and kept in face contact with the side face 43a of the sleeve.