30 Pack 694 Full Ceramic Miniature Ball Bearings 4x11x4mm Zirconia ZrO2 With PTFE Cage For Precision Micro Machinery And Hobby Projects Inner Diameter 4mm Outer Diameter 11mm Width 4mm Ideal For Micro Gears Motors And Robotic Applications

30-Pack Full Ceramic 694 Miniature Bearings 4x11x4mm
✔️ 4x11x4mm size - 30-pack - Zirconia ceramic balls & PTFE cage

Full ceramic miniature bearings measure 4x11x4mm and use zirconia balls and races with a PTFE cage. They’re ideal for precision micro-drive systems, robotics joints, and lightweight instrumentation where low friction and non-magnetic performance matter. This bulk pack is designed for projects or wholesale needs.

✅ Inner diameter: 4 mm
✅ Outer diameter: 11 mm
✅ Width: 4 mm
✅ Material: Zirconia (ZrO2) ceramic balls and races; PTFE cage
✅ Configuration: full ceramic, non-magnetic
✅ Pack quantity: 30 bearings

💡 What is a full ceramic bearing used for in precision micro-assemblies?

These bearings are used where high hardness, non-magnetic properties, and low friction are essential in tight spaces.

- high hardness zirconia balls resist wear in micro-machines - non-magnetic construction suits optics and electronics - lightweight, corrosion-resistant design for compact assemblies