Title:
BEARING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/189278
Kind Code:
A1
Abstract:
A bearing device (100) comprises: a rolling bearing (10) having an inner ring (11), an outer ring (12), and a rolling body (13); and a generator (20) that generates electricity along with rotation of the inner ring relative to the outer ring. The inner ring has an inner-ring outer diametrical surface (11d). The outer ring has an outer-ring inner diametrical surface (12c). The outer ring is disposed on the outside of the inner ring in a radial direction such that the outer-ring inner diametrical surface faces the inner-ring outer diametrical surface. The rolling body is disposed between the inner-ring outer diametrical surface and the outer-ring inner diametrical surface. The generator has a magnetic ring (30), and a stator (40). The magnetic ring has a multi-pole magnet (32) magnetized to have N-poles and S-poles alternately in a circumferential direction, and is attached to one of the inner ring and the outer ring.
Inventors:
KOIKE TAKASHI (JP)
FUKUSHIMA YASUYUKI (JP)
FUKUSHIMA YASUYUKI (JP)
Application Number:
PCT/JP2023/008538
Publication Date:
October 05, 2023
Filing Date:
March 07, 2023
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C41/00; F16C33/76
Domestic Patent References:
| WO2017171067A1 | 2017-10-05 | |||
| WO2011042410A1 | 2011-04-14 |
Foreign References:
| JP2003269474A | 2003-09-25 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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