Flexible Shaft Coupling 20mm OD, 25mm Length, 6 To 8mm Bore, Aluminum Anodized Hub, High Precision H7 Tolerance, Pro Grade Servo And Stepper Motor Coupler For CNC And Robotics Projects

Pro-grade 20mm OD Flexible Shaft Coupling for CNC
✔️ 20 mm OD, 25 mm length, 6-8 mm bore, H7 tolerance, 1pc

This compact flexible shaft coupling connects servo or stepper motors to driven shafts in CNC machines, 3D printers, and robotics setups. Its anodized aluminum hubs resist corrosion while the polyurethane spider dampens vibration for smooth, quiet operation in tight spaces.

✅ Bore range 6-8 mm
✅ OD 20 mm, length 25 mm
✅ Aluminum anodized hubs for corrosion resistance
✅ Polyurethane spider insert (98 Shore A) for damping
✅ Grade 12.9 set screws for secure retention
✅ R-type chamfered edges reduce stress concentration
✅ High concentricity for smooth rotation and low noise
✅ Suitable for servo and stepper motors in CNC, robotics, and 3D printers

💡 What is a flexible shaft coupling used for in CNC and robotics projects? This handy device connects motors to driven shafts, tolerating minor misalignment and damping vibration. - Improves alignment in tight drives - Reduces vibration and wear in motion systems - Enables smooth torque transfer in compact drives