Rigid Shaft Coupler 3mm To 6mm L20mm By D12mm Aluminum Alloy Pro Grade Joint Connector Set For 3D Printers And DIY Projects Encoder Ready With 20 Screws Red 5 Pack

Red aluminum shaft coupler, 5-pack, 3-6mm bore, 20mm long
✔️ 3-6 mm bore, 20 mm long, red aluminum, 5-pack with 20 screws

Durable aluminum alloy shaft coupler accepts 3-6 mm shafts and is encoder-ready, ideal for motors, 3D printers, CNC machines, robotics, and DIY projects.

✅ Inner diameter: 3-6 mm (0.12-0.24 in); size: 20 mm by 12 mm (0.79 in by 0.47 in)
✅ Material: aluminum alloy; color: red; pack: 5 pcs
✅ Shock-absorption design reduces noise and wear
✅ Easy screw-and-wrench mounting for quick setup

💡 What is a shaft coupler used for in small machines? A handy, practical part that connects two shafts and dampens vibration and wear. - It links motors to drive shafts in 3D printers, CNCs, and robotics. - It tolerates slight misalignment while providing smooth torque transfer. - It’s easy to install with screws and a wrench for quick setup.