8-Pack 6909-2RS Full Ceramic Ball Bearings ZrO2 Si3N4 45x68x12mm Set for High Speed Spindles, Medical Equipment, Robotics And Industrial Machinery, Low Friction, Corrosion-Resistant, High Durability Bearings

Eight-Pack 6909-2RS Full Ceramic Ball Bearings 45x68x12
✔️ 8-pack bore 45mm, outer 68mm, width 12mm, full ceramic ZrO2

These are full ceramic ball bearings made from Zirconia (ZrO2) with a PTFE cage, offering exceptional stiffness, corrosion resistance, and low friction. They are commonly used in precision equipment, automated systems, robotics, and lab machinery where reliable, low-wear operation is critical. This 8-pack provides spares for batch projects and ongoing maintenance.

✅ Bearing type: full ceramic (ZrO2) with PTFE cage
✅ Bore x OD x width: 45x68x12 mm
✅ Balls and races: zirconia; Cage: PTFE
✅ Seal: 2RS (two-sided rubber seal) for contamination protection

💡 What is the best application for ceramic pillow block bearings in automated systems? In simple terms, it's a mounting solution that keeps a shaft aligned and reduces wear in tough environments.

- Long life under heavy loads - Corrosion resistance in damp environments - Low maintenance and reduced lubrication needs - Stable performance across wide temperatures