| 摘要 |
PROBLEM TO BE SOLVED: To provide a pump having no necessity of particularly strengthening strength of a delivery casing even if a thrust bearing is arranged above the delivery casing. SOLUTION: In this pump, the delivery casing 30 and an impeller casing 20 are respectively connected to upper and lower parts of a pumping pipe 10 attached with a guide vane 45, and a shaft 11 for rotatably driving an impeller 21 arranged in the impeller casing 20 is pulled outside from an upper part of the delivery casing 30. A bearing casing 40 is fixed to the center of the guide vane 45 so as to surround the shaft 11. The bearing casing 40 is projected to the upper part from an opening 31 arranged in the delivery casing 30. The thrust bearing S of the shaft 11 is arranged in a part for projecting the bearing casing 40 from the upper part of the delivery casing 30. Thus, a thrust load of the thrust bearing S is supported by the highly rigid guide vane 45.
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