Beefy Rigid Shaft Coupling With Set Screws Quarter Inch To 8mm Bore Aluminum Alloy 25mm Length 14mm Outer Diameter M4 Screws For 3D Printers CNC Machines DIY Robots And Stepper Motors

Rigid Shaft Coupling with Set Screws for 1/4in to 8mm Bore
✔️ Aluminum alloy rigid coupling, 25 mm long, 14 mm OD, M4 screws

This rigid shaft coupling is a clamp-style connector used to hold bearings and sprockets on shafts in motor and gearbox assemblies. It accepts a bore from 1/4 inch to 8 mm and is made from aluminum alloy, offering a 25 mm length and 14 mm outer diameter for a compact, high-torque connection. Note: The rigid type does not allow eccentricity and must be fully adjusted during use. Color: Dark Blue.

✅ Bore: 1/4 inch to 8 mm (6.35-8.00 mm)
✅ Total length: 25 mm (0.98 in)
✅ Outer diameter: 14 mm (0.55 in)
✅ Material: Aluminum alloy
✅ Screws: M4 screws

💡 What is a rigid shaft coupling with set screws used for in hobby CNC machines and 3D printers?

It helps join drive shafts with minimal play and keeps alignment under load.

- Securely clamps onto a 1/4 inch to 8 mm bore
- Maintains shaft alignment with minimal backlash under load
- Commonly used in 3D printers, CNC machines, DIY robots
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