5mm To One Quarter Inch Bore Rigid Coupling Set Screw Aluminum Alloy Shaft Coupler For 3D Printers CNC Machines And Stepper Motors Dark Blue 25mm Length 14mm Outer Diameter Includes M4 Screws

Rigid 5mm to 1/4 in Bore Shaft Coupling, Aluminum, 25mm
✔️ 5mm to 1/4 in bore, 25mm length, 14mm OD, M4 screws

This rigid clamp shaft coupling connects drive shafts to motors and gear assemblies, commonly used on 3D printers, CNC machines, blowers, and DIY robots. It handles 5mm to 1/4 inch bores, with a single-piece set screw clamp design for secure holding and precise torque transfer.

✅ Bore range: 5 mm to 6.35 mm (0.197 to 0.25 in)
✅ Length: 25 mm (0.98 in)
✅ Outside diameter: 14 mm (0.55 in)
✅ Material: aluminum alloy; color dark blue
✅ Includes M4 screws

💡 What is a shaft coupling used for in hobby CNC and 3D printer projects? It joins two shafts to transfer torque and maintain alignment in drive assemblies. - Connects motor shaft to driven components like gears or pulleys - Provides a rigid, clamped connection that minimizes runout when tightened - Works with common bore ranges such as 5 mm to 1/4 in on DIY machines