The NACHI 629 miniature ball bearing is a single-row deep groove bearing with a 9 mm bore diameter, 26 mm outer diameter, and 8 mm width. It features steel construction with options for double seals or shields, providing protection against contaminants and ensuring smooth operation. The bearing supports dynamic loads up to approximately 4557 N and static loads around 1955 N, suitable for high-speed applications. Its compact dimensions and robust design make it ideal for precision machinery requiring reliable radial and axial load handling. The bearing’s cage material varies by model, including brass or steel, enhancing durability and performance.