The R Series & EE Series Single Row Deep Groove Ball Bearings encompass a wide range of miniature and extra-small imperial inch-sized bearings specifically designed for high-precision instruments and compact mechanical assemblies. The R series is the most common inch-miniature line found in everything from dental drills and office equipment to small electric motors and RC vehicles while the EE series provides specialized small-scale dimensions for niche industrial applications. These bearings are engineered to handle high rotational speeds with minimal friction and noise which is essential for delicate electronic and medical devices. Despite their small physical footprint, our R and EE series bearings are manufactured with high-grade steel and precision-honed raceways to ensure reliable performance and are available with various sealing solutions to protect the internal components from dust and moisture in sensitive operating environments.