Bearing failure monitoring device for ball screw
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United States of America Patent
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Issued Date -
Jan 19, 2012
app pub date -
Jul 13, 2010
filing date -
Jul 13, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A linear motion guide device includes a movable member attached onto an elongated member for forming an endless multiple-turn, helical raceway between the elongated member and the movable member and for receiving ball bearing members, and a detecting device includes a magnetic member and an integrated circuit disposed in the movable member and arranged close to the endless multiple-turn, helical raceway for detecting a moving frequency or a movement of the ball bearing members through the endless multiple-turn, helical raceway of the linear motion guide device and for detecting a wear or failure of the ball bearing members and for generating a warning signal.
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