DescriptionGroove ball bearing is widely applied to electronic equipment, food machinery, packaging machinery, medical machinery, printing machinery, textile machinery, equipment, robots, tools, machine tools, automotive and digital three-dimensional coordinate measuring equipment and other precision equipment or special machinery industry.Features- Brand: UEETEK. - 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. - Warm Tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you!