Spline bearing with detection device
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United States of America Patent
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Jul 14, 1998
Grant Date -
N/A
app pub date -
Jul 10, 1997
filing date -
Aug 15, 1996
priority date (Note) -
Expired
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Abstract
A ball spline bearing having a detection device which detects the relative positions and so forth of a spline shaft and outer cylinder by forming a plurality of narrow grooves 21c in spline shaft 21 and arranging extremely narrow and linear scales 31 and 32 in these grooves.
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