12 Pack 6809 Full Ceramic Si3N4 Ball Bearings 45mm By 58mm By 7mm ID OD Width High Precision Low Friction Corrosion Resistant Durable For Motors Conveyors Pumps Robotics CNC Machinery And Other Industrial Applications

Twelve-Pack 6809 Full Ceramic Bearings, 45x58x7mm
✔️ Si3N4 full ceramic bearings, bore 45mm, OD 58mm, width 7mm

These 6809 bearings use silicon nitride (Si3N4) for both races and balls with a PTFE cage, delivering low friction, high-speed capability, and exceptional corrosion resistance. Ideal for industrial machinery, automation, robotics, and precision equipment that demand reliable performance in challenging environments.

✅ 6809 full ceramic bearing with Si3N4 races and PTFE cage
✅ Bore 45 mm (1.77 in), outer diameter 58 mm (2.28 in), width 7 mm (0.28 in)
✅ Material: Si3N4 ceramic balls and races; PTFE cage for smooth operation
✅ Pack of 12 bearings for bulk installs in industrial machinery

💡 What is a ceramic bearing used for in mechanical systems?

A handy explanation of when and why engineers choose ceramic bearings for real-world setups.

- High-speed spindles and precision machinery benefit from low friction ceramic bearings - Corrosion resistance in wet or chemical environments extends service life - Lightweight Si3N4 components improve efficiency in robotics and automation - Low maintenance needs make them a solid choice for sealed, clean environments