The MR137-ZZ is a Miniature Double-Shielded Deep Groove Ball Bearing engineered for reliable performance in compact, precision applications. Utilizing the fundamental deep groove design, this small-diameter bearing is capable of supporting radial loads and very light axial loads in either direction. With a 7 mm bore and integrated double metal shields (ZZ) for basic contamination protection, it is an essential component for sensitive instruments, small motors, precision drives, and other applications where space is limited and smooth, low-friction operation is critical.