The Koyo 6013 Single Row Ball Bearing is built from durable steel and designed for reliable performance in moderate radial and low axial load applications. It features a 2.5591 in (65 mm) round bore, 3.937 in (100 mm) outer diameter, and 0.7087 in (18 mm) overall width. With a riveted steel cage, open closure, and C0 internal clearance, this single-row bearing ensures smooth operation and stability, making it a dependable choice for light to medium-duty machinery.