Ceramic Ball Bearing Open Miniature 9x18x4 Stainless Steel Housing With Ceramic Balls For Precision Machinery And Hobby Projects, Low Friction, High Durability, Corrosion Resistant, Ideal For RC Models And Robotics

Ceramic 9x18x4 Ball Bearing for Miniature Applications
✔️ 9 mm ID x 18 mm OD x 4 mm W; ceramic balls; stainless steel race; pack: 1 bearing

These compact bearings are open miniature units engineered for precision tasks. They’re commonly used in robotics joints, micro-mechanical assemblies, and medical devices where space is tight and longevity matters.

✅ Inner diameter: 9 mm
✅ Outer diameter: 18 mm
✅ Width: 4 mm
✅ Balls: Ceramic balls in stainless steel race
✅ Closures: Open - no shields
✅ Pack: 1 bearing

💡 What is a ceramic stainless steel open ball bearing used for in precision machinery?

Handy for projects that demand smooth, accurate motion and resistance to corrosion.

- ideal for compact linear motion in robotics and instrumentation - supports high-speed moving parts with low friction - ceramic balls offer durability and long life in challenging environments