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:
Oct. 14, 2025
Filed:
Jun. 23, 2023
Mabuchi Motor Co., Ltd., Chiba, JP;
MABUCHI MOTOR CO., LTD., Chiba, JP;
Abstract
A holding structure includes a bearing holder including a cylindrical holder portion into which a ball bearing is internally fitted from one side in an axial direction of a shaft, and a positioning portion on another side in the axial direction of the holder portion and abutting on the ball bearing; and a mounting plate having a cylindrical mounting portion in which a portion of the holder portion is press-fitted. An inner surface of the holder portion includes an adhesion surface bonded to an outer peripheral surface of the ball bearing, a relief surface having an inner diameter larger than an inner diameter of the adhesion surface, and a step surface connecting the adhesion surface and the relief surface. An axial position of the step surface overlaps the ball bearing engaged to the bearing holder.