---
publication_id: "OT-2026-000000236"
title: "High-offset belt tensioner with counterbalance torsion spring force"
published_at: "2026-09-15T19:02:38.675839Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000000236"
categories:
  - "industrial-motion-power-transmission/rotary-motion"
keywords:
  - "f16h7/1218"
  - "f16h2007/081"
  - "f16h2007/0865"
---

# High-offset belt tensioner with counterbalance torsion spring force

## Abstract

A high-offset belt tensioner has a base having a pivot tube that defines a first axis of rotation, an arm having a pivot tube-receiving body rotatably seated over the pivot tube and having a pulley pivot tube that defines a second axis of rotation. A torsion spring is seated around an exterior surface of the pivot tube-receiving body with a first spring end attached to the base and a second spring end oriented and seated in the pulley pivot tube. A pulley is seated on the pulley pivot tube and rotatable thereabout. A dust cover is seated on the pulley pivot tube juxtaposed to the pulley and a first end of the pivot tube is deformed toward the dust cover to retain the pulley without the use of a pulley bolt.