MECCANIXITY blue aluminum rigid shaft coupler set for 4–8 mm shafts, 25×14 mm, includes 20 screws
Blue aluminum rigid shaft coupling for 4–8 mm shafts, 25 mm long and 14 mm diameter, 5-pack with screws
Blue aluminum rigid shaft couplers, 4–8 mm bore, 25 mm length, 14 mm diameter, 5-pack with screws for 3D printers
Blue aluminum rigid shaft coupling for 4-8 mm shafts; 25 mm long, 14 mm diameter with two set-screw holes.
Blue aluminum rigid shaft coupling for 4–8 mm shafts, 25 mm long, with screws (5-pack)
Two blue aluminum alloy rigid screw shaft couplers for 4–8 mm shafts, 25 mm long, 14 mm OD

Rigid Screw Coupling From 4Mm To 8Mm Shaft, 25Mm Long And 14Mm Diameter Aluminum Alloy Joint Connector, Blue, For 3D Printers And DIY Encoder Projects, Includes 20 Screws, 5 Pack

$49.93 $80.00you save $30.07
SKU: VXB0FBKTPSQ6
UPC: 00193019742815





Blue aluminum screw coupling for 4mm to 8mm shafts, 5 pack
✔️ 25mm length, 14mm diameter, aluminum blue, 5-pack with screws

These rigid screw couplings securely join shafts of different sizes, making them perfect for 3D printers, motors, CNC machines, and encoder projects where a solid, noise-reducing drive is needed.

✅ Inner diameter range: 4mm to 8mm
✅ Overall size: 25mm length x 14mm diameter
✅ Material: Aluminum alloy, blue color
✅ Package: 5 pcs with 20 screws

💡 What is a rigid screw coupling used for in 3D printers, CNC machines, and encoder projects?

These handy couplings keep drive shafts aligned and transmit torque cleanly with minimal play.

  • Provides a tight, compact connection between 4-8 mm shafts
  • Reduces backlash and noise for smoother operation in demanding setups
  • Simple installation with included screws and wrench
  • Widely used in hobby CNC, robotics, and encoder drive systems
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