# Why Robots Use This Simple Gear to Grip Anything Robots don't have hands. The...
Canonical: https://social-archive.org/pennydropper/i234VOh7zh
Original URL: https://www.instagram.com/p/DaDE_WuIHXR/
Author: Mechanical Design
Platform: instagram
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## Content
Why Robots Use This Simple Gear to Grip Anything Robots don't have hands. They have this. This is a rack and pinion parallel gripper. One central pinion drives two opposite racks, so both jaws close perfectly in sync. That's why factories use it for pick and place — centered grip, no slip, every time.
## Media
1. video: https://social-archiver-api.social-archive.org/media/archives/pennydropper/VwFRZp2T2o/media/0.mp4