Bearing device, spacer, and manufacturing method
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United States of America Patent
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Aug 20, 2024
Grant Date -
Mar 23, 2023
app pub date -
Feb 2, 2021
filing date -
Feb 14, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A bearing device includes: a magnetic ring fixed to an inner ring; and a stator fixed to an outer ring so as to face magnetic ring. Magnetic ring and stator constitute a claw pole type generator. Stator includes a coil and a magnetic yoke surrounding coil. The magnetic yoke is configured by combining a first member and a second member that are magnetic bodies. First member and second member have an identical shape. Each of first member and second member has a plurality of second claws arranged in a comb shape. A plurality of first claws of first member and the plurality of second claws of second member are alternately arranged on a surface facing magnetic ring.
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