Full Ceramic Bearing 6806-2RS With ZrO2 Rings And Si3N4 Balls, PTFE Based Grease, 30x42x7 mm Bearing Size, Inner Diameter 30 mm Outer Diameter 42 mm Width 7 Mm, Ceramic Ball Bearing For Industrial And Precision Applications

6806-2RS Full Ceramic Bearing with ZrO2 rings & Si3N4 balls
✔️ 30x42x7 mm, single bearing, ZrO2/Si3N4 ceramic, PTFE grease

This is a single full ceramic bearing with zirconium dioxide (ZrO2) races and Silicon Nitride (Si3N4) balls, designed for high-performance applications. It's commonly used in precision machines, robotics, and medical equipment where low friction and corrosion resistance matter.

✅ Inner diameter: 30 mm
✅ Outer diameter: 42 mm
✅ Width: 7 mm
✅ Material: ZrO2 ceramic races; Si3N4 ceramic balls
✅ Lubrication: PTFE-based grease
✅ Seal: 2RS on both sides
✅ Operating temp: -50 to 150 C

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

Ceramic bearings are handy for spaces where heat, moisture, and load are tough.

• Low friction and long life for high-speed setups
• Excellent temperature and chemical resistance
• Lightweight materials improve dynamic response
• Ideal for sealed or contamination-sensitive systems