Clamp On Shaft Collar For SBR20 Linear Guides 20mm Bore 40mm Outer Diameter 12mm Thick Aluminum Alloy With M5 Set Screw Stop Collar For Motion Guide Shafts 4 Pack Durable And Easy Install Ideal For DIY CNC Projects

Clamp-On Shaft Collar for SBR20 Rails 20mm Bore 4-Pack
✔️ Aluminum collar with 20mm bore, 40mm OD, 12mm thick, 4-pack

These clamp-on shaft collars fit SBR-type round linear guides, offering precise shaft positioning for DIY CNC machines, 3D printers, and laser setups.

✅ Inner diameter machined to fit standard SBR rails (SBR12/16/20/25)
✅ Includes M5 set screw for secure grip without shaft damage
✅ Lightweight aluminum alloy with anodized finish for corrosion resistance
✅ 4-pack so you have spares for multiple axes or quick swaps
✅ Clamp-on style for quick installation in tight spaces

💡 What is a clamp-on shaft collar used for in linear guide systems? This handy accessory keeps rails aligned and prevents drift in motion assemblies.
- Helps lock shafts on SBR rails for stable motion
- Reduces axial drift in DIY CNC, 3D printers, and laser rigs
- Compatible with 12, 16, 20, and 25 mm rail sizes