5 Pack Brass Rigid Motor Shaft Couplings 7mm to 7mm for RC Models and 3D Printers 22x14mm Body Bore 7mm Connects Motor Shafts to Fully Threaded Rods for Smooth Reliable Motion in Model Cars Boats Planes
✔️ Brass rigid coupling, 22x14 mm body, bore 7 mm (0.275 in)
These shaft couplings connect motor shafts to fully threaded rods, enabling smooth, reliable motion in RC models, 3D printers, model cars, boats, and airplanes. Made from brass for durability and corrosion resistance, they’re designed for easy installation by sliding on and tightening the M4 screws.
✅ Brass material is durable and corrosion-resistant, non-rusting.
✅ 22x14 mm body, 7 mm bore, compatible with M4 screws.
✅ Top tight rigid coupling delivers high torque with low inertia.
✅ No rotation gap helps maintain precise alignment under load.
✅ Includes 5 couplers, 20 M4 screws, and 2 wrenches for quick setup.
💡 What is a brass shaft coupling used for in hobby machines like RC models and 3D printers? This handy part helps transfer motion from motor shafts to threaded rods while accommodating small misalignments. - Joining motor shafts to threaded rods for reliable motion transfer - Reducing misalignment and vibration in small machines - Brass material offers corrosion resistance for long-term use - Easy installation with standard M4 screws