2 Pack 5mm To 6mm Aluminum Shaft Coupler 25mm Long 19mm OD Spring Type Flexible Coupler For Motors Encoders 3D Printers CNC Machines DIY Robots Silver High Quality Durable Low Backlash

Compact 5mm to 6mm shaft coupler for printers
✔️ 5mm-6mm bore, 25mm total length, 19mm OD, durable aluminum alloy

These spring-type shaft couplers connect small torque shafts like motors and encoders, making them ideal for 3D printers, CNC machines, and DIY robots. Crafted from high-strength aluminum alloy, they are lightweight, durable, and provide a cushioning effect to absorb minor misalignments.

✅ Connection bore diameter: 5mm to 6mm
✅ Total length: 25mm (0.98 in)
✅ Outside diameter: 19mm (0.75 in)
✅ Material: Aluminum alloy, silver color
✅ Spring-type design with cushioning for misalignment
✅ Pack contents: 2 x couplers + 1 hex wrench

💡 What is a shaft coupler and why is it used in small drive systems?

In simple terms, this handy part links two shafts while absorbing minor misalignment.

- High-precision alignment in compact drives
- Reduces backlash and vibration in small motors and encoders
- Easy installation with included hex wrench
- Suits 5-6 mm shafts in printers and CNC rigs