One Quarter Inch To One Quarter Inch Bore Rigid Coupling With Set Screw Aluminum Alloy Shaft Coupler Connector For 3D Printers Stepper Motors CNC Machines And DIY Robotics Heavy Duty Four Pack
✔️ Bore 1/4 in (6.35 mm) to 1/4 in (6.35 mm); length 25 mm (0.98 in); OD 18 mm (0.71 in); M4 screws
This rigid shaft coupling is a heavy duty aluminum alloy connector designed to join motor or gearbox shafts with precision. It’s a common fit for 3D printers, CNC machines, and DIY robotics where a tight, alignment‑critical connection is needed. This four‑pack keeps you geared up for multiple projects without hunting for replacements.
✅ Bore: 1/4 in (6.35 mm) to 1/4 in (6.35 mm); length 25 mm (0.98 in); OD 18 mm (0.71 in)
✅ Material: aluminum alloy; finish: silver; screws: M4 included
✅ Clamp: single‑piece set screw design for easy mounting
✅ Pack: 4 pieces
💡 What is a rigid shaft coupling used for in small DIY CNC and 3D printer projects? A handy overview helps you pick the right connector for precise drive trains. - transfers torque with minimal backlash for accurate motion - keeps motor shafts and driven parts aligned under load - ideal for 3D printers, CNCs, and DIY robotics with set screw clamp