2mm To 5mm Bore Rigid Coupling With Set Screw For Stepper Motors, 12mm Outer Diameter Aluminum Shaft Coupler, L20XD12 Red, The Workhorse Gear For 3D Printers CNC Machines Blowers DIY Robots And Other Motor Projects

2-5 mm Bore Rigid Shaft Coupler with Set Screws, 12mm OD
✔️ 1 pc red aluminum shaft coupler, 20 mm long, 2-5 mm bore, 12 mm OD

The rigid shaft coupling is a compact aluminum clamp-style connector designed to securely join motors and drive parts with precise alignment. It’s ideal for 3D printers, CNC machines, blowers, and DIY robots where torque transfer matters.

✅ Material: aluminum alloy; color: red; bore range: 2-5 mm; length: 20 mm; OD: 12 mm
✅ Tightening: 2/4 screws top clamp for secure grip
✅ Package: 1 x rigid shaft coupler and 4 x M4 screws

💡 What is a rigid shaft coupling used for in hobby CNC and 3D printer projects?

Here's a handy breakdown. - Transmits torque with minimal backlash and no play
- Fits 2-5 mm bore shafts and 12 mm outer diameter
- Easy to install with a single-piece clamp and M4 screws
- Ideal for stepper motors, small gear drives, and DIY drive systems
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