The MR85 is a precision-engineered, single-row miniature ball bearing designed for applications where minimizing rotational drag and maximizing space efficiency are the top priorities. Defined by its unshielded "Open" configuration, this 5x8x2 mm component eliminates the friction typical of contact seals, allowing for seamless high-speed operation. It is specifically intended for use within enclosed housings or oil-bath environments where the bearing is already protected from external debris, ensuring smooth power transmission in the most compact mechanical footprints.

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.