The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 30, 2020

Filed:

Apr. 12, 2017
Applicant:

Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;

Inventors:

Tomoaki Yamashita, Tokyo, JP;

Makoto Henmi, Tokyo, JP;

Norio Takeda, Tokyo, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 13/00 (2019.01); G01M 13/04 (2019.01); F16C 41/00 (2006.01); F16C 19/06 (2006.01); F16C 19/52 (2006.01);
U.S. Cl.
CPC ...
G01M 13/04 (2013.01); F16C 19/06 (2013.01); F16C 19/522 (2013.01); F16C 41/00 (2013.01); F16C 2233/00 (2013.01);
Abstract

There are provided a rolling bearing fatigue state prediction device and a rolling bearing fatigue state prediction method capable of highly accurately predicting a fatigue state of a rolling bearing even when a direction of a load applied to a rolling bearing changes. A rolling bearing fatigue state prediction device includes a load measurement unit for determining a magnitude and a direction of a bearing load applied to a rolling bearing supporting a rotating body, a load applied region identification unit for identifying a region to which a load is applied in a circumferential region of the rolling bearing, and a fatigue state prediction unit for predicting a fatigue state of the rolling bearing based on the obtained magnitude of the load and the identified load applied region.


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