Flexible Beam Coupling 3mm To 5mm Shaft Size 25mm Length 1 Inch With 19mm Outer Diameter DIY Friendly For 3D Printers CNC Machines And Encoders Includes M4 Screws 4 Pack

Compact 4-Pack Flexible Beam Couplings for 3-5 mm shafts
✔️ 4-pack: 3-5 mm shaft, 19 mm OD, 25 mm length, M4 screws

These compact flexible beam couplings connect a drive shaft to a driven shaft in hobby CNC machines, 3D printers, encoders, and small automation projects. They help maintain smooth motion by absorbing misalignment and vibration, even under light shock loads.

✅ Pack size: 4 pieces
✅ Shaft range: 3-5 mm (0.12-0.20 in) tolerance for easy fit
✅ Outer diameter: 19 mm (0.75 in); Length: 25 mm (1.00 in)
✅ Material: aluminum alloy, anodized silver, high temp resistance -80°C to +300°C

💡 What is a beam coupling used for in precision motion systems? This handy device links shafts while handling misalignment. - It transfers torque smoothly in 3D printers, CNCs, encoders, and robotics - It cushions shocks and reduces wear on motors and gearboxes - It installs quickly with standard M4 screws in a 4-pack