Rigid Shaft Coupler 5mm To 5mm Aluminum Alloy Six Piece Blue Set For Motors 3D Printers And DIY Projects With M4 Screws And L Wrench A Solid High Precision Connector For Tight Shaft Alignment

Blue 5mm-5mm Aluminum Shaft Coupler Set with M4 Screws (6pc)
✔️ Rigid aluminum alloy couplers, 25 mm long, 14 mm OD, 5-5 bore

These rigid shaft couplers lock two shafts together with zero backlash, delivering precise torque transmission in compact motor systems. They’re ideal for 3D printers, CNC routers, laser engravers, and other DIY automation projects where tight shaft alignment matters.

✅ Inside Diameter: 5mm to 5mm bore
✅ Length: 25mm
✅ Outside Diameter: 14mm
✅ Thread: M4
✅ Material: Aluminum Alloy, Blue finish
✅ Quantity: 6 Pieces (includes M4 screws and L wrench)

💡 What is a rigid shaft coupler used for in precision motor and 3D printer drives?

This handy connector provides a compact, high-precision link between two shafts, keeping alignment tight and transmitting torque with minimal lash.

• handy for small drive systems like 3D printers and CNCs for precise motion
• works with 5 mm to 5 mm bore shafts and M4 screws for secure fastening
• aluminum alloy construction delivers light weight and rust resistance for DIY projects