The MR104-ZZ is a high-speed, single-row miniature ball bearing designed for mechanical systems that demand ultra-low friction and efficient space utilization. Featuring dual pressed steel shields (ZZ) on a 4x10x4 mm profile, this component excels at keeping out particulate matter while retaining factory-applied lubrication. Its streamlined architecture is specifically engineered for precision measurement tools, hobbyist electronics, and micro-motors, guaranteeing smooth raceway rotation and minimal energy loss even during continuous high-RPM operations.