DescriptionGroove ball bearing is widely applied to electronic equipment, food machinery, packaging machinery, medical machinery, printing machinery, textile machinery, machinery, equipment, robots, tools, machinery, machine tools, automotive and digital three-dimensional coordinate measuring equipment and other precision equipment or special machinery industry.Features- Model: 623ZZ. - Color: Silver Tone. - Material: Durable metal. - Inner Diameter: 3mm/ 0.12 inch. Outer Diameter: 10mm/ 0.39 inch. - Thickness: 4mm/ 0.16 inch. - Groove ball bearing for 3D printer and other equipments. - Closed with 2 Metal Shields, one Shield from each side, to protect the bearing from dust or any possible contamination. - Commonly used for Electric Motors, Wheel Bearings, Agricultural, Conveying and much more.