Description
The 8mm × 8mm Rigid Shaft Coupler is designed to connect a stepper motor shaft to a lead screw or ball screw with matching 8mm diameters. It is suitable for 3D printers, CNC routers, CNC mills, plasma machines, and other automation equipment that uses shaft-driven motion systems.
Manufactured from aluminum alloy, this coupler offers a lightweight and durable design for mechanical power transmission. Its rigid construction helps transfer rotational motion directly between connected shafts. The four included grub screws help secure the shafts in place during installation.
With its compact 25mm length and 13.8mm outer diameter, this coupler is suitable for compatible motor and lead screw assemblies. Ensure both shafts are 8mm in diameter and properly aligned before installation.
Specifications
- Product Type: Rigid Shaft Coupler
- Application: 3D Printers, CNC Machines, and Automation Equipment
- Shaft Compatibility: 8mm × 8mm
- Length: 25mm
- Outer Diameter: 13.8mm
- Material: Aluminum Alloy
- Color: Blue
- Top Thread Size: M4 (as listed)
- Through Angle: 180° (as listed)
- Weight: Approximately 20g
Package Includes
- 1 × Rigid Shaft Coupler
- 4 × Grub Screws








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