699 Full Ceramic Silicon Nitride Ball Bearing 9x20x6 Miniature Pack of 25 High Precision Bearings with PTFE Cage for Smooth Low Friction Performance In Industrial RC Hobby Robotics And CNC Applications

Premium 25-Pack Full Ceramic Si3N4 Bearings 9x20x6
✔️ 9mm ID, 20mm OD, 6mm wide; 25 full ceramic bearings

These miniature bearings are full ceramic Si3N4 units with silicon nitride balls and races, featuring a PTFE cage. They’re ideal for compact assemblies in precision robotics, optics, and automated instrumentation where high speed, low weight, and resistance to heat and corrosion matter.

✅ Bearing type: 699 full ceramic ball bearing
✅ Ball material: Silicon nitride (Si3N4)
✅ Cage material: PTFE
✅ Inner diameter: 9 mm; Outer diameter: 20 mm; Width: 6 mm
✅ Pack size: 25 bearings
✅ Ideal for high-precision, low-friction applications

💡 What is a ceramic ball bearing used for in precision equipment? Handy in high-speed, tight-tolerance setups that demand durability.

- Handy in high-speed, low-friction motion for precise work - Excellent heat and corrosion resistance for tough environments - Lightweight design helps reduce inertia in small assemblies - Maintains accuracy under thermal changes in demanding gear