Abstract: An impeller rotator (21) includes a turbine impeller (11), a compressor impeller (12), a shaft (13) connecting the turbine impeller (11) to the compressor impeller (12), and a connecting member (16) fastening one of the turbine impeller and the compressor impeller to one axial end region of the shaft, and the connecting member (16) is plastic-deformed so as to decrease overall imbalance of the turbine impeller (11), the compressor impeller (12), and the shaft (13).

Abstract: An impeller rotator (21) includes a turbine impeller (11), a compressor impeller (12), a shaft (13) connecting the turbine impeller (11) to the compressor impeller (12), and a connecting member (16) fastening one of the turbine impeller and the compressor impeller to one axial end region of the shaft, and the connecting member (16) is plastic-deformed so as to decrease overall imbalance of the turbine impeller (11), the compressor impeller (12), and the shaft(13).

Abstract: A steering drive axle assembly which comprises a steering knuckle having an integral reduced portion rigid with one end of an axle housing, a socket member having its reduced portion secured to internal extremity of a wheel mounting spindle and being supported by a pair of vertically spaced king pins which are respectively mounted to an upper wall and a lower wall of the steering knuckle so that it can move about the king pins. The steering drive axle assembly further comprises a shell housing which includes a substantially semi-spherical portion and a cylindrical extension which extends into rigid engagement with the reduced portion of the steering knuckle, a constant velocity universal joint which connects a drive and a driven shafts together being disposed within the shell housing, and a sealing member being provided in sealing contact against a smoothly spherical outer periphery of the shell housing.