25 Pack Full Ceramic Si3N4 Miniature Ball Bearings 8x16x4mm High Precision Low Friction Bearings With PTFE Cage For Robotics, Drones, CNC, 3D Printing And Small Machinery Applications

Bulk 25-Pack Full Ceramic 688 Ball Bearings 8x16x4mm
✔️ 8x16x4 mm full ceramic Si3N4 bearings, PTFE cage, 25 pcs

These miniature ceramic bearings provide high precision and long-term durability for compact machinery. They're commonly used in robotics, mini CNC, lab equipment, and other small assemblies where dry, corrosion-resistant performance matters.

✅ Size: 8x16x4 mm (ID 8 mm, OD 16 mm, W 4 mm)
✅ Material: Si3N4 ceramic balls; Si3N4 ceramic races
✅ Cage: PTFE for low friction
✅ Pack: 25 bearings per pack

💡 What is a ceramic bearing used for in compact precision equipment?

Ceramic bearings are handy in high-speed applications where low friction and resistance to corrosion are important. - High RPM capability with minimal heat buildup - Non-magnetic and chemically resistant in harsh environments - Long service life in dry, clean operating conditions ❖