2 Pack Flexible Shaft Couplings 5 To 8 Millimeters Range 25 Millimeter Length 20 Millimeter Diameter Aluminum Alloy Stepper Motor Coupler For 3D Printers CNC Machines RepRap Befenybay

Two-Pack Aluminum Shaft Couplings for 5-8 mm bore (25x20) ✔️ Bore: 5-8 mm (0.19-0.31 in); Size: 25x20 mm (0.98x0.79 in)

These compact aluminum shaft couplings connect motor shafts to driven shafts in RepRap 3D printers and small CNC machines, delivering steady torque transfer and precise alignment for smooth operation.

✅ Bore range: 5-8 mm (0.19-0.31 in)
✅ Material: aluminum alloy, lightweight and corrosion-resistant
✅ Size: L25 × D20 mm (0.98 × 0.79 in)
✅ Package: 2 x flexible shaft couplings + 1x Allen key
✅ Weight: ~17 g per piece

💡 What is a shaft coupling used for in small motion systems? A handy component for hobby projects to join shafts and transfer torque while allowing slight misalignment.
- Transmits torque from motor to driven shaft
- Allows small misalignment between shafts
- Lightweight aluminum alloy construction for everyday use
- Includes Allen key for quick setup