PURPOSE: To obtain the rotor of a superconducting rotative electric apparatus capable of decreasing vibration caused by the anisotropy of the rigidity of a coil fixation shaft without decreasing the rigidity by arranging a flexible support having two elastic main axes of different rigidity on a plane intersecting the rotation central axis of the coil fixation shaft.

CONSTITUTION: The rigidity in the direction of the X-axis of a flexible support 20 to support a coil fixation shaft 6 is greater than its rigidity in the direction of the Y-axis. Therefore, when the flexible support 20, which has two elastic main axes of different rigidity, is arranged with its high-rigidity X-axis at the slot side of the coil fixation shaft 6 and its low-rigidity Y-axis at the magnetic pole side of the coil fixation shaft 6, the anisotropy of the rigidity of the coil fixation shaft 6 is cancelled and that of the whole rotor is decreased. Therefore, vibration caused by the anisotropy of the rigidity of the coil fixation shaft 6 is decreased without decreasing its rigidity.