| 摘要 |
PURPOSE:To remarkably reduce the wearing of a canned motor pump during operation over a long period, by forming bearings in such a way that carbon graphite as a basic composition material is impregnated with antimony of a specific wt% so that their wear-resistant capability against liquid of high temperature and low viscosity is enhanced. CONSTITUTION:A front and rear bearings 30, 32 are formd of a carbon graphite as a basic composition material which is impregnated with antimony of about 16 to 32wt% with respect to carbon graphite. With these bearings, in a canned motor pump which is exposed to the atmosphere at a temperature of more than 200deg. C, the amount of wearing may be remarkably reduced during continuous operation over a long period.
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