| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnet pump whose life is elongated by improving wear durability of bearings. SOLUTION: A magnet pump comprises a disk magnet driven by a rotation of a motor, and a magnet coupling having an impeller including bearings rotatably supported with respect to a fixed shaft arranged in a pump casing, wherein a repulsive magnetic force is provided between the fixed shaft and the bearing, and a repulsive magnetic force for repulsing the magnetism of the magnet coupling is provided on the inside surface of the magnet pump casing opposed to the rotation radius direction of the magnet coupling.
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