Motor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jul 5, 2016
Grant Date -
Oct 1, 2015
app pub date -
Sep 20, 2013
filing date -
Oct 5, 2012
priority date (Note) -
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Abstract
A motor which includes: inner ring having upper end surface, outer ring, and balls between inner ring and outer ring. Pressurizing spring, into which rotary shaft is inserted, is located between core and bearing, and provides bias forces in the axial direction of rotary shaft. Outer ring is pressed to fit into bearing holding part. Inner ring is fitted onto rotary shaft with gap therebetween. Upper end surface of inner ring is in contact with pressurizing spring. Pressurizing spring applies the bias forces of different strengths onto a surface in which upper end surface contacts with pressurizing spring, along a circumferential direction with the axial direction as a center.
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