Pack Of Four 12mm Split Shaft Collars Aluminum Alloy Two Piece Clamping Collar 30mm Outer Diameter 10mm Thickness With M4 Set Screws Heavy Duty Shaft Locking Hubs For CNC Machines Milling 3D Printing Projects

Four 12mm Split Shaft Collars, Aluminum, 30mm OD
✔️ Two-piece aluminum split collar, 30mm OD, 12mm bore, M4 screws

These premium split shaft collars come in a pack of four and are made from lightweight aluminum alloy with a corrosion-resistant oxidation finish. They clamp securely onto 12mm shafts, protecting them from damage while holding timing pulleys, bearings, or other components in CNC machines, milling setups, and 3D printer rigs.

✅ Material: aluminum alloy with oxidation-treated surface for durability
✅ Fitment: outer diameter 30mm, bore 12mm, thickness 10mm (OD 1.18", bore 0.47", thick 0.39")
✅ Clamping design: two-piece with M4 screws to avoid shaft damage
✅ Applications: holds pulleys, bearings, stops, or other components in machining or 3D printing
✅ Installation: quick assembly/disassembly for frequent adjustments

💡 What is a split shaft collar used for in precision machining setups? This handy accessory keeps pulleys, bearings, and other parts aligned securely on 12mm shafts. - secure position of pulleys and bearings on 12mm shafts - quick adjustments without taking apart machinery - gentle clamping with M4 screws to protect shafts - fits 30mm outer diameter collars for compact layouts