Experience superior performance with these precision-engineered 623ZZ ball bearings, specifically designed for inline skates and scooters. Measuring 3x10x4mm, these compact bearings feature a robust carbon steel construction that delivers exceptional durability and reliability. The deep groove design ensures smooth, silent operation while maintaining stability during use. These versatile bearings are perfect for various skating and scooting applications, offering consistent performance and minimal friction. The double-shielded (ZZ) design helps protect against dust and debris, extending the bearing's service life while reducing maintenance needs. Whether you're upgrading your existing gear or building something new, these bearings provide the perfect balance of precision, durability, and smooth rolling action. Ideal for both recreational and performance applications, these bearings maintain reliable operation under normal usage conditions, making them a dependable choice for your skating needs.