DescriptionThis single row deep groove ball bearing is widely applied to electronic equipment, food machinery, packaging machinery, medical machinery, printing machinery, textile machinery, machinery, equipment, etc. They have 2 metal to protect the bearing from dust or any possible contamination. These bearings are pre-lubricated with grease.Features- Brand: UEETEK - Model: 624ZZ. - Color: Silver. - Material: Durable metal. - Inner Diameter: 4mm/ 0.16 inch. Outer Diameter: 13mm/ 0.51 inch. - Thickness: 5mm/ 0.2 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.