Flexible Shaft Coupling OD 20mm Length 25mm Bore 10mm Anodized Aluminum Alloy Coupler For Compact CNC Axes And Automation Modules With High Precision H7 Tolerance And Verified Fit

Anodized Aluminum 20x25mm Shaft Coupling, 10mm bore 1pc
✔️ OD 20mm, length 25mm, bore 10mm; anodized aluminum, H7 fit

This precision flexible shaft coupling uses anodized aluminum hubs and a polyurethane spider to transmit torque with dampening in compact drivetrains. It’s a solid choice for small CNC axes, pick-and-place modules, and 3D printers that demand accurate alignment.

✅ OD 20mm, length 25mm, bore 10mm
✅ H7 tolerance on bore with plug gauge verification
✅ Anodized aluminum hubs; polyurethane 98 Shore A insert
✅ R-type chamfered slit edges for load distribution
✅ Grade 12.9 screws for secure hub retention
✅ Ideal for compact CNC axes, servo and stepper drives, 3D printers

💡 What is a precise shaft coupling used for in compact CNC and automation setups?

It links motors to driven shafts while damping vibrations and keeping alignment.

• Enhances accuracy in small CNC axes and 3D printers
• Helps smooth servo and stepper drive operation under load
• Supports tight bore tolerances (H7) for a snug, verified fit