Shaft Collar for SBR20 Linear Rail Stop, 20mm Bore 40mm OD 12mm Thickness Aluminum Alloy Anodized Clamp-On with M5 Set Screw, Locking Collars for CNC and Linear Motion Systems

Aluminum Shaft Collar for SBR20 Linear Rail, 20mm Bore, Clamp-On
✔️ 40mm OD, 12mm thickness, M5 set screws, anodized finish

This 4-pack aluminum shaft collar is designed to fix and position SBR20 shafts in CNC and linear motion systems, delivering reliable axial restraint and easy installation for DIY machines.

✅ 4-pack clamp-on collars; 20mm bore to fit SBR20 shafts
✅ 40mm outer diameter; 12mm thickness for a solid grip
✅ Aluminum alloy with anodized surface for corrosion resistance
✅ M5 set screws clamp securely without shaft damage

💡 What is a shaft collar used for in CNC and linear motion setups? This handy part keeps shafts fixed, aligned, and ready for repeatable stops during operation.

- Provides axial fixation for rotating shafts
- Serves as precise stops along linear guides
- Easy clamp-on installation with minimal shaft damage