Re-Insert assistance tool for SFU1605 nut
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The tool assists by re-inserting balls that fall off during maintenance etc.
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Model information
- Source
- Printables
- Category
- Tools
- License
- Creative Commons — Attribution — Noncommercial
I accidentally lost a tiny ball while removing the nut from an SFU1605 ball screw — one got stuck between my tool and the thread and jumped out.
While searching for a way to reinsert it (and reading a few horror stories), I came up with this little helper tube.
How to:
The tube has a small angled cutout that lets you insert the balls easily from either side. Place the cup underneath to catch any that might escape!
I used a small flashlight, a magnetic screwdriver (see picture), and a bit of PTFE spray for lubrication. Just rotate the tube slowly — and it’s done.
⚠ Note: This tool is designed for a single bearing. Be careful not to pull the tube too far off the nut to prevent more balls from falling out.
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Please feel free to ask if there are any issues or if you have ideas to adapt.
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