Flexible Shaft Coupling 20mm OD by 25mm Length, 8mm to 10mm Bore Aluminum Plum Connector for 3D Printers CNC Machines and Servo or Stepper Motors, Polyurethane Spacer Built Tough Delivers Over 2x Torque and Zero Backlash for Smooth, Precise Motion

20mm OD Flexible Shaft Coupling for Precise Motion
✔️ Aluminum plum connector, 8-10mm bore, 25mm length, polyurethane spacer

This single-unit aluminum plum connector with a polyurethane spacer delivers zero-backlash torque transfer in compact drive systems. It’s ideal for 3D printers, CNC machines, and servo or stepper motor assemblies where smooth, precise motion matters.

✅ Outer Diameter: 20 mm
✅ Length: 25 mm
✅ Bore: 8-10 mm
✅ Material: Aluminum plum connector with polyurethane spacer
✅ Torque capacity: Over 2x traditional claw coupling
✅ Backlash: Zero backlash
✅ Temperature range: -20°C to 80°C
✅ Sealing and insulation: Oil-resistant and electrically insulated elastomer
✅ Vibration absorption: Excellent elasticity reduces shaft deflection

💡 What is a flexible shaft coupling used for in precision machinery?

This handy device aligns drive shafts and transfers rotational power with minimal play, improving stability and accuracy in tight spaces. - reduces backlash during torque transmission - compensates minor misalignment for steady motion - dampens vibration to protect bearings and gears - compatible with polyurethane spacers for durable, tight fit