30 Pack Full Ceramic Ball Bearings 683 2RS 3x7x3mm Zirconia Sealed Bearings With PTFE Cage Ideal For Precision Machinery Robotics Medical Devices And Hobby Projects Ensuring High Speed Low Friction Operation

30-Pack Full Ceramic Ball Bearings 3x7x3mm Zirconia
✔️ 30 pcs, 3x7x3 mm, full ceramic ZrO2 with PTFE cage, 2RS sealed

These miniature bearings use zirconia ceramic balls and zirconia races, offering superior corrosion resistance and low friction in compact assemblies. They’re handy for model builders, optics, robotics, and micro machinery where precision matters.

✅ Inner diameter 3 mm, outer diameter 7 mm, width 3 mm
✅ Full ceramic zirconia balls and races
✅ PTFE cage for smooth rotation and long life
✅ Pack of 30 bearings with 2RS seals on both sides

💡 What is a small ceramic ball bearing used for in precision equipment and hobby projects?

Ceramic bearings are handy in compact spaces where durability matters. - Ceramic bearings with zirconia balls offer low friction and high corrosion resistance. - PTFE cages reduce wear for smooth, long-lasting operation. - 2RS sealed variants protect against dust in outdoor or dusty environments. - Ideal for micro motors, drones, cameras, and tiny gear assemblies.