The MR125-ZZ is a Double-Shielded Ultra-Miniature Deep Groove Ball Bearing engineered for precision and reliability in extremely space-limited applications. Utilizing the fundamental deep groove raceway, this micro-sized bearing is capable of supporting light radial loads and minimal axial loads from both directions. With a compact 5 mm bore and pre-installed double metal shields (ZZ) for protection, it is a critical component for sensitive instruments, micro-motors, optical devices, and other applications where minimal size, smooth operation, and contamination resistance are paramount.