---
title: "What is a screw jack?"
url: "https://zimm.com/wiki/what-is-a-screw-jack/"
datePublished: "2025-07-24T11:45:02+00:00"
dateModified: "2026-06-29T06:06:40+00:00"
author: "jonathan-mildner"
lang: en
canonical: "https://zimm.com/wiki/what-is-a-screw-jack/"
markdown: "https://zimm.com/ai/wiki/what-is-a-screw-jack.md"
categories: "Questions and answers about our products, Screw jacks"
---

A screw jack is an electromechanical drive that converts rotary motion, for example from a motor, into linear motion. It enables precise lifting, lowering, or positioning of loads. ZIMM offers two versions:

- Translating spindle (S version): the spindle moves axially
- Rotating spindle (R version): the spindle rotates, and the travelling nut moves along the spindle

https://www.youtube.com/watch?v=jCLrwmd81LU

## Videos

### Was ist ein Spindelhubgetriebe?

In this video, viewers will explore the mechanics of a screw jack, learning how it converts rotary motion into linear motion for precise lifting and positioning of loads.

- [Watch on YouTube](https://www.youtube.com/watch?v=jCLrwmd81LU)