Drop In Flexible Aluminum Shaft Couplings 6mm To 8mm 25mm Long 19mm OD 4 Pack For 3D Printers CNC Machines Stepper Motors Encoders And DIY Robots Shaft Joint Connectors

Drop-In Aluminum Shaft Couplings, 6 to 8 mm, 25 mm length
✔️ Bore 6 to 8 mm, length 25 mm, OD 19 mm, 4 pack aluminum

These spring-type aluminum shaft couplings connect 6 to 8 mm shafts with a 25 mm total length and a 19 mm outer diameter. Made from high-strength aluminum alloy in silver, they offer buffering to absorb deviations between diameters and angles in motors, encoders, 3D printers, DIY robots, and CNC tools.

These spring-type couplings provide a buffering connection for compact motor-to-shaft assemblies, helping smooth out small misalignments and shaft deviations. They are designed for use in hobby CNC and 3D printer setups where lightweight, durable linking is needed.

✅ Bore: 6 to 8 mm (0.24 to 0.31 in) range
✅ Total length: 25 mm (0.98 in)
✅ Outside diameter: 19 mm (0.75 in)
✅ Material: aluminum alloy; color: silver
✅ Pack size: 4 pieces
✅ Includes hex wrench

💡 What is a shaft coupling used for in hobby CNC and 3D printer builds?

This handy piece connects a motor shaft to a driven shaft and buffers misalignment. - Transfers torque from motor to driven shaft - Helps compensate small angular and radial misalignment - Lightweight aluminum alloy for durability ✝️