| 摘要 |
PURPOSE:To increase lubricity by supporting a shaft with a supporting arm and a rear casing, loosely fitting a magnet lining which holds an inner magnet via a bearing on the outer periphery of said shaft, and forming a lubricating groove on said bearing. CONSTITUTION:A shaft 8 is fixed by a support arm 9 formed on a casing 1, a magnet lining 11 is loosely fitted over the shaft 8 via a bearing 10, and an inner magnet 6 is provided on its outer periphery. Part of a discharged liquid flows into between a rear bearing 15 and a rear thrust 14, and lubricates the part between the inside of the bearing 10 and the outer surface of the shaft 8 through the lubricating grooves 16 of the bearing 10. Thereby, the lubricity can be increased as compared with the conventional pump.
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