10Pcs 608ZZ Deep Groove Ball Bearing Double Shield Miniature Bearing Single Row Ball Bearings for Skateboards Inline Skates Scooters. Feature: 1. Efficient Radial Load Support: The deep groove ball bearing excels at supporting radial loads, ensuring optimal performance and stability of the rotating components. 2. Durability and Resistance to Heavy Load Deformation: Manufactured from carbon steel, this bearing exhibits exceptional durability and resistance to deformation under heavy loads. 3. Enhanced Protection from Contaminants: The miniature bearing features shields on both sides to prevent lubricants from entering and contaminants from infiltrating the internals. 4. Versatile Applications: Designed for versatility, the skateboard ball bearings is suitable for a wide range of applications such as skateboards, inline skates, and scooters. 5. Reduced Friction and Optimal Load Distribution: By utilizing rolling elements, this ball bearing maintains precise spacing between moving parts, resulting in reduced rotational friction.