Slewing apparatus
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United States of America Patent
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Dec 22, 2015
Grant Date -
Aug 8, 2013
app pub date -
Aug 25, 2011
filing date -
Sep 1, 2010
priority date (Note) -
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Abstract
A slewing apparatus, comprising a slewing bearing means for the operation of a reel. A first slewing bearing (10) is configured to carry torsion and axial loads in the reel, while the second slewing bearing (20) is configured not to carry substantial torsion and axial loads in the reel. Thereby the second slewing bearing (20) functions as a back-up bearing for the reel, while the first slewing bearing (10) operates the reel and thus serves as the primary slewing bearing for the reel.
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