Title:
ROLLING BEARING AND SENSOR-ATTACHED ROLLING BEARING
Document Type and Number:
WIPO Patent Application WO/2020/184615
Kind Code:
A1
Abstract:
A rolling bearing according to an embodiment comprises: a stationary ring having a first facing surface; a rotary ring that has a second facing surface facing the first facing surface and rotates with respect to the stationary ring; a rolling element disposed between the first facing surface and the second facing surface; a retainer that holds the rolling element; a first electrode and a second electrode of which the positions are fixed with respect to the stationary ring and which are arranged in a bearing space between the stationary ring and the rotary ring; a third electrode of which the position is fixed with respect to the rotary ring, with respect to the rolling element, and with respect to the retainer, and which is disposed in the bearing space; and an insulation film that is formed on the surfaces of the first electrode and the second electrode or the surface of the third electrode. The third electrode is disposed such that a first distance that is a distance between the third electrode and the first electrode and a second distance that is a distance between the third electrode and the second electrode change as the rotary ring rotates with respect to the stationary ring. A phase of a temporal change in the first distance is offset from a phase of a temporal change in the second distance.
Inventors:
TANI HIROSHI (JP)
HAKAMATA HIROYUKI (JP)
SHIBUYA YUSUKE (JP)
YAMAGUCHI SOTA (JP)
HAKAMATA HIROYUKI (JP)
SHIBUYA YUSUKE (JP)
YAMAGUCHI SOTA (JP)
Application Number:
PCT/JP2020/010567
Publication Date:
September 17, 2020
Filing Date:
March 11, 2020
Export Citation:
Assignee:
THE SCHOOL CORPORATION KANSAI UNIV (JP)
NTN TOYO BEARING CO LTD (JP)
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C19/06; F16C19/24; F16C19/26; F16C41/00; G01P3/481; H02N1/08; H02N1/10
Foreign References:
| JP2016084843A | 2016-05-19 | |||
| JP2016185022A | 2016-10-20 | |||
| JP2017028868A | 2017-02-02 | |||
| JP2017072170A | 2017-04-13 | |||
| JP2016070846A | 2016-05-09 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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