Six Pack 5mm To 8mm Bore Rigid Shaft Couplers Aluminum Alloy Blue, 25mm Length, 14mm Outside Diameter, M4 Set Screws, L Wrench Included, High Precision Shaft Alignment For CNC Robotics And Motor Projects

Rigid aluminum shaft couplers for 5mm-8mm bore, 25mm length
✔️ 6 x 5mm-8mm bore aluminum rigid couplers, 25mm length

The six-pack aluminum alloy rigid shaft couplers deliver a compact, high-precision link between motors and driven shafts. With a 14 mm outside diameter and 5mm-8mm bore, they’re built for CNC setups, 3D printers, laser engravers, and small robotics where reliable torque transfer matters.

✅ Inside bore: 5mm-8mm bore; Length: 25mm; Outside diameter: 14mm; Thread: M4
✅ Material: Aluminum alloy; Color: Blue; rigid, high torque capacity
✅ Includes: 24 x M4 set screws and 1 x L wrench
✅ Pack size: 6 pieces; zero-backlash torque transfer for precise drives
✅ Note: 1-2 mm measurement deviation due to manual process

💡 What are the benefits of using a 5mm-8mm bore rigid shaft coupling in CNC and robotics?

They provide a rock-solid, backlash-free connection that keeps shafts aligned under load.

1. Handy for precise torque transfer between motors and driven shafts 2. Useful in CNC routers, 3D printers, and small robotics needing clean, accurate motion 3. Simple installation with included M4 screws and L-wrench✝️