Full Ceramic Sealed Ball Bearing 20x37x9mm Zirconia ZrO2 6904-2RS High-Precision Low-Friction With PTFE Cage Double Sealed For Corrosion-Resistant High-Speed Applications For Precision Machinery, Robotics And High-Speed Spindles

Ceramic 6904-2RS Sealed Bearing 20x37x9mm, Zirconia, single
✔️ Sealed full ceramic bearing with Zirconia balls, PTFE cage, 20x37x9mm

This is a full ceramic sealed bearing sized 20x37x9 mm, built for clean, corrosion resistant, high speed applications in precision machinery and robotics. It uses zirconia ceramic balls and a PTFE cage for smooth, long lasting operation in challenging environments.

✅ Inner diameter 20 mm, outer diameter 37 mm, width 9 mm
✅ Balls: Zirconia ceramic (ZrO2) for high hardness and low friction
✅ Cage: PTFE (Polytetrafluoroethylene) for smooth motion
✅ Closures: PTFE covers for sealed protection
✅ Races: Zirconia ceramic for stiffness and corrosion resistance
✅ Quantity: 1 roulement

💡 What is a ceramic ball bearing used for in precision high-speed machinery? Ceramic bearings are handy for high-speed rotation, precise control, and harsh environments. - They offer low friction and long life due to zirconia balls and PTFE cage - They resist moisture and chemicals, avoiding rust and corrosion - They stay lightweight and stable under heat and load - They suit applications like precision spindles, lab equipment, and robotic joints