6004 Full Ceramic Silicon Nitride Ball Bearing 20x42x12mm High Precision For Industrial Machinery And Precision Applications Corrosion Resistant Lightweight Low Friction Ceramic Bearing High Durability

This 6004 full ceramic silicon nitride bearing uses silicon nitride balls and inner/outer races, with a PTFE cage for smooth motion. It’s designed for precision machines, robotics, and high-reliability equipment where corrosion resistance and low friction matter.

✅ Ball material: silicon nitride ceramic (Si3N4)
✅ Cage material: PTFE for low friction and smooth rotation
✅ Races: silicon nitride ceramic inner/outer races
✅ Size: bore 20 mm, outer 42 mm, width 12 mm

💡 What is a ceramic ball bearing used for in precision machinery and high speed equipment? Ceramic bearings are a handy choice for tough environments and precision tasks. - handy for high speed spindles and automated equipment - resistant to corrosion and chemical exposure - long service life with low friction under load - lightweight and strong for improved efficiency