Product Name : Deep Groove Ball Bearing;Model No. : 6900Z Inner Diameter : 10mm / 0.4";Outer Diameter : 22mm / 0.87" Height : 6mm / 0.24";Color : Silver Tone Material : Metal;Net Weight : 9g Closed with carbon steel shields to protect the bearing from dust or any possible contamination. Commonly used for Electric Motors, Wheel Bearings, Agricultural, Conveying and much more. Package Content : 1 x Deep Groove Ball Bearings Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.