---
publication_id: "OT-2026-000000237"
title: "Method for producing worm wheel, and worm wheel"
published_at: "2026-09-15T19:02:38.754524Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000000237"
categories:
  - "industrial-motion-power-transmission/rotary-motion"
keywords:
  - "f16h55/22"
  - "b29c45/14336"
  - "b29c45/2708"
  - "b29l2015/003"
  - "b62d5/0454"
  - "f16h1/16"
---

# Method for producing worm wheel, and worm wheel

## Abstract

A method for manufacturing a worm wheel including an inner wheel element including a side plate portion and a tubular eave portion, and an outer wheel element including a wheel tooth portion on an outer circumferential surface thereof, and coupled and fixed to the inner wheel element in a manner of covering a radially outer portion of the side plate portion and the eave portion, the method includes: molding the outer wheel element by disposing a mold around a radially outer portion of the inner wheel element, and feeding the molten synthetic resin from an annular or arc-shaped injection gate toward a pocket portion that is continuous over an entire circumference of a cavity present between an inner surface of the mold and a surface of the inner wheel element and that is present on a radially inner side of the eave portion.