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:
May. 07, 2019

Filed:

Nov. 18, 2014
Applicant:

Ntn Corporation, Osaka, JP;

Inventors:

Masaru Kuroda, Shizuoka, JP;

Tomohisa Uozumi, Shizuoka, JP;

Kenichi Suzuki, Shizuoka, JP;

Assignee:

NTN CORPORATION, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K 7/00 (2006.01); F16C 35/063 (2006.01); F16C 19/06 (2006.01); H02K 1/22 (2006.01); H02K 1/28 (2006.01); H02K 7/00 (2006.01); H02K 7/116 (2006.01); H02K 15/00 (2006.01); H02K 15/14 (2006.01); F16C 19/18 (2006.01); B60K 17/04 (2006.01); F16H 1/32 (2006.01); H02K 7/08 (2006.01); B60K 11/02 (2006.01); B60K 1/00 (2006.01);
U.S. Cl.
CPC ...
B60K 7/0007 (2013.01); B60K 7/00 (2013.01); B60K 17/046 (2013.01); F16C 19/06 (2013.01); F16C 19/186 (2013.01); F16C 35/063 (2013.01); F16H 1/32 (2013.01); H02K 1/22 (2013.01); H02K 1/28 (2013.01); H02K 7/003 (2013.01); H02K 7/08 (2013.01); H02K 7/116 (2013.01); H02K 15/00 (2013.01); H02K 15/14 (2013.01); B60K 11/02 (2013.01); B60K 2001/006 (2013.01); B60K 2007/0038 (2013.01); B60K 2007/0092 (2013.01); B60L 2220/44 (2013.01); B60Y 2306/03 (2013.01); F16C 2326/02 (2013.01); Y02T 10/641 (2013.01);
Abstract

An in-wheel motor drive device includes: a motor part; a speed reduction part; a wheel bearing part; and a casing, the motor part including: a stator, which is fixed to the casing; a rotation shaft of a motor, which is rotatably supported on the casing through intermediation of a plurality of rolling bearings; and a rotor, which is mounted to the rotation shaft of the motor, the rotation shaft of the motor being configured to rotationally drive an input shaft of a speed reducer, the speed reduction part being configured to reduce a speed of rotation of the input shaft of the speed reducer to transmit the rotation to an output shaft of the speed reducer, the wheel bearing part being connected to the output shaft of the speed reducer, the rotation shaft of the motor being made of case hardening steel and subjected to carburizing, quenching, and tempering.


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