uxcell 2 Pcs 10mm x 30mm x 9mm Row Deep Groove Ball Bearing 6200Z;

The inner diameter is 10mm, outer diameter is 30mm and the width is 9mm, could be used in many applications.
Closed with 2 metal shields to protect the bearing from dust or any possible contamination.
Commonly used for Electric Motors, Wheel Bearings, Agricultural, Conveying and much more.