Arrangement for propeller of rudder propeller of watercraft, comprises propeller with section extending into shaft opening, in which groove formed radially outward is placed to form winding protection between shaft opening and propeller

摘要

The arrangement comprises a lower housing part (11) provided with a shaft opening (12), from which a propeller shaft (13) projects and on which a propeller (10) is arranged. The propeller has a section extending into the shaft opening, in which a groove formed radially outward is placed to form a winding protection between the shaft opening and the propeller. The shaft opening completely overlaps a groove till a residual gap. The section has a collar, which forms a circumferential sealing gap against an inner side of the shaft opening.