---
publication_id: "OT-2026-000000503"
title: "Transmission device"
published_at: "2026-09-15T19:02:59.209970Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000000503"
categories:
  - "industrial-motion-power-transmission/rotary-motion"
keywords:
  - "f16h57/0424"
  - "f16h2057/02034"
  - "f16h2057/02052"
  - "f16h37/0813"
  - "f16h57/037"
  - "f16h57/045"
---

# Transmission device

## Abstract

Provided is a transmission device capable of suppressing a decrease in lubricity of a bearing. An aspect of the present disclosure is a transmission device including a transmission mechanism and a gear case accommodating the transmission mechanism. The transmission mechanism includes an input gear, a counter gear, and a ring gear. The counter gear includes a first gear and a second gear. The rotation axis of the counter gear is positioned above the rotation axis of the input gear and the rotation axis of the ring gear. The gear case includes a catch tank, a main guide that sends the oil scraped up by the ring gear to the catch tank when the ring gear rotates in the first direction, and a reverse guide that sends the oil scraped up by the first gear to the catch tank when the ring gear rotates in the second direction.