6x12x4mm ZrO2 Full Ceramic Sealed Miniature Bearing

6x12x4 Full Ceramic Ball Bearing
✔️ Zirconia - 6mm ID - 12mm OD - 4mm Width

This single 6x12x4 full ceramic bearing is built entirely from Zirconia (ZrO₂), making it a go-to choice for high-speed, non-magnetic, or corrosive environments. Ideal for medical equipment, lab tools, and electronics where standard metal bearings fall short.

✅ Pack size: 1 bearing
✅ Size: 6mm x 12mm x 4mm
✅ Type: Sealed full ceramic bearing
✅ Balls: Zirconia ceramic (ZrO₂)
✅ Races: Zirconia ceramic (ZrO₂)
✅ Cage: PTFE (Teflon®-compatible)
✅ Closures: White PTFE covers

💡 Why are Zirconia full ceramic bearings used in specialty environments?

1. Non-magnetic and corrosion-resistant - great for cleanrooms or sensitive electronics.

2. Zirconia runs cooler and resists wear better than steel.

3. PTFE cage and seals provide smooth, friction-free motion.

Engineered for precision where traditional bearings just won’t cut it.