Method for lubricating a rotational-part supporter
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United States of America Patent
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Mar 16, 2004
Grant Date -
Jan 30, 2003
app pub date -
Dec 20, 2001
filing date -
Jul 27, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A rotational-part supporter has a structure in which one of either an inner part or an outer part is fixed, and the other one is rotated, and a main rotational shaft lies between the inner and outer parts. A revolving speed below a revolving speed based on a lubrication lifetime predicted for each rotational bearing (3) is stored in a memory (61) disposed in the lubricant supply controller (6). When a revolving speed obtained by actual rotation coincides with the stored revolving speed in the rotational bearing (3) after supplying the lubricant, the controller (6) issues a signal indicating that the lubricant should be newly supplied, and thereby a safety operation can be realized.
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