| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic coupling pump capable of securing a desirable driving torque by preventing a rotor from contacting a bulkhead part while minimizing a clearance between the rotor and the bulkhead part. SOLUTION: This magnetic coupling pump comprises a housing having a pump chamber 5 and a motor chamber 6 therein via a bulkhead part 4, a rotor 7 arranged in the pump chamber 5 for being rotatably supported on a cantilever type fixed shaft 8, an impeller 10 arranged in a cylindrical part 7a of the rotor 7, the stators 15 installed to be opposed to each other in the motor chamber 6 at a permanent magnetic part 7b of the cylindrical part 7a via the bulkhead part 4. In order to prevent the rotor from contacting with the bulkhead part 4, a tapered part 7c is formed at the angled side part of the end at the bulkhead part 4 by continuously notching a part in a cross-sectionally wedge shape in a circumferential direction.
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