Durable two piece aluminum shaft couplings for 5 to 8 mm shafts, 25 mm long and 20 mm diameter, featuring a screw type clamp for reliable, precise torque transfer in 3D printers and small CNC machines with anti oxidation finish
✔️ Screw-type, 2 pcs, fits 5-8mm shafts, 25mm L, 20mm dia
Two-piece aluminum alloy shaft couplings designed to connect drive and driven shafts in small CNC machines and 3D printers. This handy, compact clamp-style connector keeps shafts aligned and transmits torque reliably, making it a solid choice for hobby-grade automation and DIY projects.
✅ Material: aluminum alloy, anti-oxidation CNC-cut finish (L25mm x D20mm; 0.98in x 0.79in), bore 5-8mm (0.19-0.31in)
✅ Shaft range: accepts 5-8mm shafts with screw-type clamping
✅ Size and weight: 25mm long, 20mm diameter, about 34g
✅ Includes: 2 couplings and 1 Allen key
✅ Function: transmits torque with precise coaxial alignment
✅ Applications: for small CNC machines, 3D printer Z-axis, model vehicles
💡 What is a shaft coupling used for in hobby CNC machines and 3D printers? This handy connector links driving shafts to driven shafts, keeping them aligned and transmitting torque reliably.
- transfers power between motor and driven shaft
- helps maintain coaxial alignment under load
- provides secure, screw-clamped grip for easy assembly
- fits 5-8mm shafts common in stepper motors