Rigid Shaft Coupling With Set Screw One Quarter Inch To 8mm Bore Aluminum Alloy Blue 14mm Outer Diameter And 25mm Length Two Pack For 3D Printers CNC Machines Stepper Motors DIY Robots Motor Accessories

Blue Aluminum Shaft Coupling 1/4 to 8mm, 14mm OD, 25mm L (2pc)
✔️ Bore: 1/4 to 8mm; OD 14mm; Length 25mm; Aluminum blue, 2pc pack

ThisRigid shaft coupling with set screws is designed to join two shafts securely in straight-line drives. It's widely used in 3D printers, CNC machines, robotics, and motor assemblies where precise torque transfer and alignment matter.

✅ Connection diameter: 1/4 inch (6.35 mm) to 8 mm
✅ Outer diameter: 14 mm (0.551 in)
✅ Total length: 25 mm (0.984 in)
✅ Material: aluminum alloy; color: blue
✅ Pack: 2 pcs; includes 8 M4 screws

💡 What is a rigid shaft coupling used for in mechanical assemblies?

This handy component keeps shafts aligned and transfers torque reliably across drive lines.

• rigid coupling maintains straight-line alignment between shafts in CNCs and 3D printers
• set-screw clamp design lets you lock onto the shaft size safely and quickly
• aluminum alloy offers light weight with good stiffness and corrosion resistance
• helps reduce backlash and play in motor-driven systems