General description AlwaysH 40 Pieces 608ZZ Miniature Deep Groove Ball Bearings are designed for durability and high performance. Made from high-quality carbon steel, these bearings are engineered to withstand heavy loads and provide stable operation over extended periods. Their versatile applications make them suitable for various equipment, including skateboards, 3D printers, scooters, and inline skates. Technical specifications Inner diameter: 8mm Outer diameter: 22mm Thickness: 7mm Usage Ideal for skateboards, inline skates, scooters, small watches, soft drives, pressure rotors, dental drills, hard disk motors, and stepper motors. Other information The iron cover on both sides of the bearing effectively prevents lubricants and impurities from entering, enhancing service life and performance.