Open Ceramic Ball Bearing R2-5 With 1/8 Inch Inner Diameter 5/16 Inch Outer Diameter And 9/64 Inch Width Miniature High Precision Bearing For Hobby CNC Robotics And Precision Mechanical Assemblies

Compact R2-5 Open Ceramic Bearing 1/8 x 5/16 x 9/64
✔️ bore 1/8 in, OD 5/16 in, width 9/64 in; single bearing

This compact open bearing uses ceramic balls with chrome steel races, ideal for precision micro machines, hobby robotics, and small gear systems where smooth rotation matters.

✅ Bore: 1/8 in (3.175 mm); OD: 5/16 in (7.94 mm); Width: 9/64 in (3.57 mm)
✅ Material: hybrid ceramic balls and chrome steel races
✅ Type: open, single bearing design for easy inspection and lubrication
✅ Pack: 1 bearing per order

💡 What is a small open ceramic ball bearing used for in precision micro machines?

This handy piece supports smooth motion in tight spaces. - micro gear trains in RC models and micro devices - precision sensor mounts and small actuators - lightweight, low-friction rotation for compact assemblies