Title:
BEARING DEVICE
Document Type and Number:
Japanese Patent JP2023147978
Kind Code:
A
Abstract:
To provide a bearing device having a generator with large power generation amount.SOLUTION: A bearing device is equipped with a rolling bearing that has an inner ring, an outer ring, and a rolling element, and a generator that generates power with relative rotations of the inner ring with respect to the outer ring. The inner ring has an inner ring outer diameter surface. The outer ring has an outer ring inner diameter surface. The outer ring is disposed on the outer side in a diametrical direction of the inner ring so that the outer ring inner diameter surface opposes the inner ring outer diameter surface. The rolling element is disposed between the inner ring outer diameter surface and the outer ring inner diameter surface. The generator has a magnetic ring, and a stator. The magnetic ring has a multipolar magnet in which N-poles and S-poles are alternately magnetized in a circumferential direction, and is attached to one of the inner ring and the outer ring.SELECTED DRAWING: Figure 4
Inventors:
KOIKE TAKASHI
FUKUSHIMA YASUYUKI
FUKUSHIMA YASUYUKI
Application Number:
JP2022055791A
Publication Date:
October 13, 2023
Filing Date:
March 30, 2022
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16C41/00; F16C33/76; G08C17/00; G08C17/02
Attorney, Agent or Firm:
Patent Attorney Fukami Patent Office
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