5 mm to 8 mm Rigid Aluminium Shaft Coupling

This 5 mm to 8 mm rigid shaft coupling is designed to directly connect two shafts of different diameters, providing backlash-free torque transmission between a motor and the driven component. It is intended for applications where accurate shaft alignment can be maintained and a solid, non-flexible connection is required.

Machined from aluminium, it combines low weight with excellent rigidity, making it suitable for FDM 3D printers, light-duty CNC machines and other shaft-driven motion systems. Since it does not compensate for shaft misalignment, proper alignment between the motor shaft and the lead screw or driven shaft is essential for reliable operation.

Key Features

• Rigid aluminium shaft coupling.
• 5 mm to 8 mm bore.
• Direct, backlash-free torque transmission.
• Designed for accurately aligned shafts.
• Secured using integrated set screws.

Technical Specifications

• Material: Aluminium.
• Bore diameter: 5 mm × 8 mm.
• Length: 25 mm.
• Outer diameter: 14 mm.

Recommended Applications

• FDM 3D printer Z axes.
• Light-duty CNC machines.
• Linear motion systems.
• Automation and robotics projects.
• Connecting shafts with different diameters.

Package Contents

• 1 × 5 mm to 8 mm rigid shaft coupling.