Rotating anode X-ray tube
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United States of America Patent
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Mar 20, 2018
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N/A
app pub date -
Feb 26, 2014
filing date -
Mar 4, 2013
priority date (Note) -
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Abstract
According to one embodiment, a rotating anode X-ray tube includes a fixed shaft, a rotor, a lubricant, target, and a supporting member. The fixed shaft includes a small-diameter portion provided with a first radial bearing surface including first grooved surfaces, and a large-diameter portion provided with a second radial bearing surface including second grooved surfaces. The rotor includes a third radial bearing surface. The lubricant is filled in a gap between the fixed shaft and the rotor, and drawn by the first and second grooved surfaces.
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