Full Ceramic Bearing 6904 20x37x9mm With PTFE Cage And Zirconia Balls For High Precision And Low Friction Performance In Robotics, Aerospace, Medical And Industrial Applications, Worldwide

6904 Full Ceramic Bearing 20x37x9mm, single unit
✔️ 20mm ID, 37mm OD, 9mm width; ZrO₂ ceramic, PTFE cage

The 6904 Full Ceramic Bearing is a high performance ball bearing built entirely from ceramic components, delivering low weight, high stiffness, and exceptional corrosion and heat resistance. It's ideal for precision machinery, robotics, and other high speed setups where smooth motion and long life matter.

✅ Inner diameter 20 mm, outer diameter 37 mm, width 9 mm
✅ Cage: PTFE, Balls: Zirconia ceramic (ZrO₂), Races: Zirconia (ZrO₂)
✅ Temperature rating up to 180°C (356°F), high corrosion resistance
✅ Pack size: 1 bearing; lightweight, low friction for precision use

💡 What is a 6904 full ceramic bearing used for in precision machinery?

This handy answer explains typical use cases and benefits. - High speed spindle support with low friction and minimal heat - Corrosion and heat resistance in harsh environments - Lightweight design that boosts efficiency in robotics and CNC - Long service life with zirconia balls and PTFE cage