2 Pack 6mm To 6mm Bore Steel Rigid Shaft Coupling For Heavy Duty Precision Alignment In 3D Printers CNC Machines And Stepper Motors With M4 Set Screws And L Wrench Includes 22mm Length And 14mm Outside Diameter

2-Pack 6mm to 6mm Steel Rigid Shaft Couplings for Precision
✔️ 2x 6mm to 6mm bore, 22mm length, 14mm OD, M4 screws

These heavy-duty steel rigid shaft couplings connect two shafts with zero backlash, ensuring precise torque transfer and alignment in high-precision systems. They’re widely used in DIY CNC routers, 3D printers, laser engravers, and robotics projects.

✅ Inside diameter: 6mm to 6mm bore
✅ Length: 22mm
✅ Outside diameter: 14mm
✅ Material: #45 steel, rust-resistant
✅ Finish: Silver
✅ Package: 2 pieces with 8 M4 set screws and L wrench included

💡 What is a rigid steel shaft coupling used for in precision drive systems?

It’s a handy, straightforward connection that keeps shafts aligned under load.

• Zero-backlash torque transfer for repeatable motion
• Rigid #45 steel construction handles high torque
• Ideal for connecting motors to lead screws, ball screws, or other driven shafts
• Easy installation with included M4 screws and L wrench