These precision-engineered miniature ball bearings are designed for superior performance in compact applications. The 6-piece set features a robust metal sealed construction that ensures smooth, quiet operation while protecting the internal components from dust and debris. Each bearing is manufactured to exact specifications, making them perfect for various mechanical projects, hobby applications, and precision instruments where space is at a premium. The durable metal construction provides exceptional longevity and reliability under normal operating conditions. These versatile bearings are ideal for use in model building, small machinery, DIY projects, and other applications requiring high-quality miniature bearings. Their sealed design minimizes maintenance requirements while maintaining consistent performance. Whether you're working on a detailed craft project or maintaining small mechanisms, these bearings deliver the precision and reliability needed for smooth operation in space-constrained environments.