---
publication_id: "OT-2026-000001282"
title: "Belt termination and tensioning in a pulley arrangement for a robotic arm"
published_at: "2026-09-15T19:04:39.190674Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000001282"
categories:
  - "industrial-motion-power-transmission/rotary-motion"
keywords:
  - "a61b1/00149"
  - "a61b34/30"
  - "f16h19/0672"
  - "f16h19/0672"
  - "a61b1/00149"
  - "a61b1/3132"
---

# Belt termination and tensioning in a pulley arrangement for a robotic arm

## Abstract

In one variation, a pulley arrangement includes a base pulley portion rotatable within a driving plane, an adjustable pulley portion coupled to the base pulley portion wherein the adjustable pulley portion is rotatable relative to the base pulley portion within the driving plane, and a driving member including an end coupled to the adjustable pulley portion wherein at least a portion of the driving member is wrapped at least partially around the adjustable pulley portion. In another variation, a pulley arrangement includes a base pulley portion rotatable around an axis, an adjustable pulley portion coupled to the base pulley portion and movable in a first direction parallel to the axis, and a sliding block engaged with the adjustable pulley portion, wherein the sliding block moves in a second direction different from the first direction, in response to compression of the adjustable pulley portion against the base pulley portion.