Beefy 1/4 Inch To 1/4 Inch Bore Rigid Shaft Coupler With Set Screw Aluminum Alloy 14mm OD 25mm Length Blue Ideal Shaft Connector For 3D Printers Stepper Motors CNC Machines DIY Robotics

Blue 1/4 to 1/4 Inch Rigid Shaft Coupler, 25mm Length
✔️ Pack: 1 coupling with 4 M4 screws; rigid blue aluminum

This rigid shaft coupler securely joins two 1/4 inch shafts, delivering tight torque transfer in 3D printers, CNC machines, and DIY robotics.

✅ Connection diameter 1/4 to 1/4 inch (6.35 mm)
✅ Total length 25 mm (0.98 in)
✅ Outside diameter 14 mm (0.55 in)
✅ Material aluminum alloy, blue color
✅ Includes 1 coupling and 4 M4 screws
✅ Through angle 180 degree

💡 What is a rigid shaft coupler used for in hobby CNC and 3D printer setups?

In short, it securely links two shafts to transfer torque with precise alignment.

- ideal for connecting stepper motors to drive shafts in printers and CNCs - clamps tightly with set screws to minimize backlash - designed for rigid, low inertia coupling in high torque applications