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:
Aug. 25, 2026
Filed:
Jan. 28, 2025
Nabtesco Corporation, Tokyo, JP;
Yuta Wanaka, Tokyo, JP;
Shuichi Kamagata, Tokyo, JP;
NABTESCO CORPORATION, Tokyo, JP;
Abstract
The present invention makes it possible to inhibit the enlargement of a lubrication region in a speed reducer including a sealing member. The speed reducer includes a case, a carrier, main bearings, and a sealing member. The carrier is located at least partly inside the case. The main bearings are located between the case and the carrier. The sealing member includes a first ring, a second ring, and a first elastic ring. The first ring is annular and mounted to one of the case and the carrier. The second ring contacts an annular region of the first ring. The first elastic ring is compressed between the second ring and the other of the case and carrier. The sealing member is located at least partly in the same region as the main bearings in the radial direction perpendicular to the rotation axis of the carrier rotating relative to the case.