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:
Mar. 17, 2026

Filed:

Sep. 18, 2023
Applicant:

Nidec Corporation, Kyoto, JP;

Inventors:

Junya Mizukami, Kyoto, JP;

Shinya Kuramoto, Kyoto, JP;

Assignee:

Nidec Corporation, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 5/173 (2006.01); F16C 19/08 (2006.01); H02K 7/08 (2006.01); H02K 21/22 (2006.01);
U.S. Cl.
CPC ...
H02K 5/1735 (2013.01); F16C 19/08 (2013.01); H02K 7/085 (2013.01); H02K 21/22 (2013.01); F16C 2380/26 (2013.01);
Abstract

A motor includes a holder, a rotor inside the holder with a shaft rotatable about a central axis, first and second bearings rotatably supporting the shaft, and a stator radially outside the holder. The holder includes a first holder, and a second holder extending upward from an upper end of the first holder. The stator is fixed to an outer peripheral surface of the first holder, and an outer ring of the first bearing is fixed to a lower end of an inner peripheral surface of the first holder. A portion of an outer ring of the second bearing is fixed to an inner peripheral surface of the second holder. The second holder is radially spaced from the stator core. A radial thickness of the second holder is less than a distance between an outer peripheral surface of the second holder and an inner peripheral surface of the stator core.


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