Lot de 20 roulements à billes 627-2RS en céramique (Si3N4), 7x22x7mm Sealed ), destinés aux boîtes de vitesses de micro-machines de précision, RC et aux applications industrielles. Idéaux pour la robotique, 3D , les projets CNC et les applications nécessitant une vitesse élevée et un faible frottement.

Twenty-Pack Full Ceramic Bearings 7x22x7mm, Si3N4 miniatures
✔️ 7x22x7mm full ceramic 627-2RS bearings, PTFE cage, pack of 20

These miniature ceramic bearings are built from silicon nitride with a PTFE cage, delivering excellent wear resistance and corrosion resistance in compact assemblies. They’re ideal for robotics, hobby machines, and precision instruments where smooth rotation matters.

✅ Full ceramic construction with Si3N4 balls and races
✅ PTFE cage for low friction and smooth operation
✅ Size: bore 7 mm, outer 22 mm, width 7 mm (7x22x7 mm)
✅ Rubber seals (2RS) for dirt and moisture protection
✅ Pack count: 20 bearings per order

💡 What is a handy question about ceramic bearings and when to choose full ceramic?

Ceramic bearings offer reliable performance in high-heat, corrosive, and magnet-sensitive setups.

- High wear resistance for long life in precision machinery
- Non-magnetic properties good for electronics
- Low friction for smooth, efficient motion
- Sealed 2RS design protects against dust and moisture