Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Nobumitsu Hori0
Takashi Matsui0
Koji Hasegawa0
Koji Kito0
Osamu Higashimoto0
Date of Patent
May 14, 2019
Patent Application Number
13273602
Date Filed
October 14, 2011
Patent Citations Received
Patent Primary Examiner
Patent abstract
A spindle condition detection device for a machine tool includes: bearing load detecting means for detecting a load on a bearing that rotatably supports a spindle of a machine tool; and present usage ratio calculating means for calculating, based on the load detected by the bearing load detecting means, a present usage ratio that is a ratio of usage of the bearing with respect to a prescribed operating life of the bearing, which is achieved over a period until a present moment.
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