Ceramic Bearing 6801 2RS Sealed ABEC 5 Si3N4 Silicon Nitride Balls 12x21x5mm Double Sealed Deep Groove Radial Ball Bearing With Chrome Steel Cage For High Precision Machinery And Robotics Ideal For CNC 3D Printers And Precision Equipment

6801-2RS ceramic bearing combines Si3N4 ceramic balls with chrome steel components for high-speed, low-friction performance. It’s a double-sealed radial deep groove bearing designed for high-speed operation in motors, 3D printers, CNC machinery, and precision equipment where reliability matters.

✅ Double sealed RS rubber seals protect from dust and contaminants
✅ Inner diameter 12 mm, outer diameter 21 mm, width 5 mm (12x21x5)
✅ Ceramic balls Si3N4; cage chrome steel; lubrication grease SRL
✅ ABEC-5 precision; radial clearance C3
✅ Material: chrome steel races; self-lubricated grease

💡 What is a ceramic ball bearing used for in high-speed precision machinery? Ceramic bearings are handy for high-speed, low-friction operation.
- ideal for motors, CNC machines, and 3D printers
- resist corrosion and contamination in challenging environments
- maintain smooth rotation at tight tolerances
- support long service life in demanding cycles