3mm ID x 12mm OD Pulley V Groove Track Roller Bearing 3x12x4mm

3mm V-Groove Track Roller Bearing
✔️ 12mm OD - 4mm Width - Shielded Pulley Style

This V-groove track roller bearing features a 3mm bore and double metal shields, perfect for guide rail systems, linear motion setups, or compact pulley tracks. The V-groove design ensures smooth guidance along round or angled edges with minimal friction.

✅ Pack size: 1 bearing
✅ Type: V-groove track roller bearing
✅ Bore: 3mm
✅ Outer diameter: 12mm
✅ Width: 4mm
✅ Closures: Double metal shields
✅ Standard: Metric
✅ Application: Rail guides, sliding tracks, 3D printers, CNC assemblies

💡 What’s the benefit of a V-groove track roller in motion systems?
V-groove rollers maintain alignment along both round and angled rails, offering low-friction travel and precise tracking - making them ideal for sliding systems where accuracy and quiet motion are key.

It’s tiny but mighty - give your project the smooth ride it deserves and let this little roller do the heavy lifting!