PROBLEM TO BE SOLVED: To provide an impeller supporting tool that can restrain damage of the impeller during transportation, and the like in a centrifugal pump with the impeller rotated without contact with its casing.;SOLUTION: The tool includes a rod part 311 with its end part inserted into a casing 60 from an intake opening 6 thereof, a first supporting part 315 provided on the end part of the rod part to be deformed elastically to have a fitting part 318 as a part thereof inserted between a front shroud 20 and a rear shroud 40 of an impeller 10 provided not relatively movable with respect to the impeller in the axial direction and the radial direction, and second supporting members 325, 350 provided not relatively movable with respect to the rod part unless an external force of a preset degree or more functions thereon to come in contact with the casing when the fitting part is inserted between the front and the rear shrouds so as not to be movable in the radial direction with respect to the casing in a state with the casing and the impeller not contacted in the radial direction while being adjustable in the relative position of the rod part in the axial direction with respect to the casing.;COPYRIGHT: (C)2013,JPO&INPIT
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