6mm to Quarter Inch Bore Rigid Shaft Coupling With Set Screws Aluminum Alloy 25mm Length 18mm Outside Diameter Connector For 3D Printers Motors CNC DIY Robots

Aluminum Alloy Rigid Coupling Joins 6mm to 1/4 Inch Shafts
✔️ 25mm length 18mm OD aluminum with M4 set screws silver finish

This rigid shaft coupling joins a 6mm shaft to a quarter inch shaft in setups like 3D printers and CNC machines.

✅ 6mm to 1/4 inch bore connection
✅ 25mm total length with 18mm outside diameter
✅ Aluminum alloy body and M4 set screws included
✅ Fits 3D printers motors CNC DIY robots and blowers
✅ Single piece clamp design for high torque rigidity

💡 How do rigid shaft couplings help align motors and drives in precision builds? Rigid couplings lock shafts together firmly for direct power transfer. - They suit stepper motor and gearbox setups where zero flex is needed. - The set screw clamp holds tight on mixed shaft sizes without play. - Installers use them on CNC tables and robot arms for exact positioning.

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