| 摘要 |
PROBLEM TO BE SOLVED: To provide a submerged motor pump capable of keeping a normal bearing function, and keeping normal operation state for a long time, even when an inexpensive ordinary bearing is used for an upper bearing and the bearing is heated to be not less than heat-resistant temperature of grease. SOLUTION: In the submerged motor pump wherein a pump 30 and a motor portion 10 are coupled in series, a grease reservoir chamber storing grease for refilling is provided in an anti-load side of an anti-load side bearing housing 23 of the motor portion 10, and a plurality of communicating holes 25 is provided on a partition portion 23 provided between the grease reservoir chamber 24 and the bearing 18. COPYRIGHT: (C)2004,JPO
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