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.
Patent No.:
Date of Patent:
Nov. 10, 2020
Filed:
Dec. 27, 2016
Applicant:
Ntn Corporation, Osaka, JP;
Inventors:
Assignee:
NTN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 25/22 (2006.01); H02K 7/06 (2006.01); H02K 7/116 (2006.01); F16H 25/20 (2006.01); F16H 57/021 (2012.01); F16D 121/24 (2012.01); F16D 125/40 (2012.01);
U.S. Cl.
CPC ...
F16H 25/2228 (2013.01); F16H 25/2015 (2013.01); F16H 25/2204 (2013.01); F16H 57/021 (2013.01); H02K 7/06 (2013.01); H02K 7/116 (2013.01); F16D 2121/24 (2013.01); F16D 2125/40 (2013.01); F16H 25/2214 (2013.01); F16H 2025/2075 (2013.01); F16H 2025/2078 (2013.01);
Abstract
Provided is an electric actuator, including: a motor part; a motion conversion mechanism part; an operation part; and a terminal part, wherein a hollow rotary shaft configured to support a rotor core of the motor part is supported by a rolling bearing so as to be rotatable, wherein the motion conversion mechanism part is coupled to the hollow rotary shaft, and includes a ball screw, wherein a ball screw nut of the ball screw is arranged inside the hollow rotary shaft, wherein the operation part is coupled to the motion conversion mechanism part, and wherein an inner raceway surface of the rolling bearing is formed on the hollow rotary shaft.