30 Pack Full Ceramic Miniature Ball Bearings 4x11x4mm 694-2RS ZrO2 With PTFE Cage High Precision Ultra Low Friction Bearings For Micro Machinery And Hobby Applications Ideal For Precision Instruments And Micro Robotics

Full ceramic miniature bearings 4x11x4mm - 30 pack
✔️ 30-pack full ceramic sealed ball bearings, 4x11x4mm, ZrO2 core

This wholesale 30-pack features full ceramic miniature ball bearings sized 4x11x4mm, ideal for precision mechanisms, micro-robotics, and hobby projects that demand high wear resistance and low friction in demanding environments.

✅ Inner diameter: 4 mm
✅ Outer diameter: 11 mm
✅ Width: 4 mm
✅ Ball material: Zirconia ceramic (ZrO2)
✅ Races material: Zirconia ceramic (ZrO2)
✅ Cage material: PTFE
✅ Type: Full ceramic bearing
✅ Quantity: 30 bearings

💡 What is a ceramic bearing used for in high-precision machinery? Ceramic bearings provide low friction, high stiffness, and long life for exacting workloads. - Handy for high-speed spindles and precision stages - Great for corrosive or dirty environments - Helpful in robotics and CNC tooling