The Koyo 16013C3 Single Row Ball Bearing is an open-type bearing designed for smooth operation in moderate radial and low axial load applications. It has a 2.5591 in (65 mm) inner diameter, 3.937 in (100 mm) outer diameter, and 0.4331 in (11 mm) width, with C3 internal clearance to ensure reliable performance under thermal expansion and higher running speeds. Constructed from durable steel with a round bore, riveted steel cage, and open closure, this bearing provides strength, precision, and versatility for a wide range of light to medium-duty machinery and equipment.