3 To 8mm Bore Rigid Shaft Coupling With Set Screws Aluminum Alloy 25mm Length 18mm Outer Diameter Sleek Dark Blue Motor Accessory For 3D Printers CNC Machines Stepper Motors And DIY Robotics
✔️ 3-8 mm bore, 25 mm length, 18 mm OD, M4 screws, single unit
This rigid shaft coupling provides a solid, clamp-style connection between motors and driven shafts for hobby CNC machines, 3D printers, and DIY robotics. Crafted from durable aluminum alloy in a sleek dark blue finish, it delivers high torque with precise alignment for reliable motor to shaft coupling.
✅ Bore range: 3-8 mm fits common shafts
✅ Length: 25 mm (0.98 in), outer diameter 18 mm (0.71 in)
✅ Clamp-style, single-piece design with M4 screws for secure grip
✅ High torque, rigid, low inertia for precise motor coupling
💡 What is a rigid shaft coupling used for in hobby CNC and 3D printers? This handy connector keeps motors and drive shafts aligned under load. - Used to transfer motor torque to a driven shaft - Maintains alignment with minimal backlash in compact builds - Fits 3-8 mm bore shafts and 18 mm OD units - Great for hobby CNC, 3D printers, DIY robotics, and gear drives