The MR93-ZZ is a precision-engineered micro ball bearing built specifically for applications requiring ultra-fast rotational speeds and minimal frictional resistance. With a compact 3x9x4 mm dimensional profile and dual non-contact metal shields (ZZ), this component effectively retains vital lubrication while blocking larger debris. Unlike rubber-sealed variants, the steel shields ensure zero mechanical drag, making this bearing the ultimate choice for high-RPM electric micro-motors, precision robotics, and specialized hobbyist equipment where maximizing kinetic efficiency is the top priority.

The MR52-ZZ is a Premium Ultra-Miniature Deep Groove Ball Bearing engineered for high-precision and reliable performance in the most compact applications. Featuring double metal shields (ZZ) on both sides, this metric bearing provides effective protection against dust and particulate matter in confined spaces. With an ultra-small 2mm bore, it is an ideal, space-saving choice for micro motors, precision medical devices, tiny instrumentation, and miniature mechanisms where every cubic millimeter counts.