Single-row deep groove ball bearing with basic configuration consisting of inner ring, outer ring, steel balls, and cage, representing the most versatile bearing type. Widely used for rotating shaft support in machine tool spindles, industrial motors, conveyor systems, pumps, and similar applications. Handles both radial and axial loads with high-speed rotation capability. Available in extensive size range from JIS standard to precision grades, serving as the most commonly used standard bearing in manufacturing facilities due to excellent maintainability. Available in sealed, open, and dust cover specifications.