20mm One Piece Shaft Collars Clamping Style Locking Collars Aluminum Drill Bit Stop Collars, 20mm Bore Size, 40mm OD, with M5 Set Screw, 12mm Thickness (Pack of 4)

20mm Aluminum Shaft Collars, One-Piece Locking with M5 Screw
✔️ 20mm bore, 40mm OD, 12mm thick, M5 set screw; pack of 4

These 20mm bore, one-piece aluminum shaft collars clamp securely to shafts, fixing and positioning components in gearboxes, motor mounts, drive systems, and general tooling setups. Lightweight, oxidation resistant, and easy to install without major disassembly.

✅ 20mm bore size, 40mm outer diameter, 12mm thickness; one-piece collar with M5 screw
✅ Clamps shaft cleanly without marring; resists loosening under vibration
✅ Lightweight aluminum alloy; corrosion resistant for long service life
✅ Pack of 4 collars; ideal for gearboxes, motor bases, drive shafts and equipment
✅ Simple installation for rapid setup in manufacturing and hobby projects

💡 What is a shaft collar with locking screw used for in mechanical systems?

In short, it’s a handy way to fix shaft position and prevent drift in rotating assemblies.

- Handy for axial fixation on shafts in gearboxes and tooling - Keeps components aligned and reduces wear under load - Quick clamp with a single M5 set screw, no heavy disassembly - Works well on standard 20mm shafts across industries