The Koyo 16010 Single Row Ball Bearing is an open-type bearing designed for moderate radial and low axial load applications. With a 1.9685 in (50 mm) inner diameter, 3.1496 in (80 mm) outer diameter, and 0.3937 in (10 mm) width, it features C0 internal clearance for stable operation. Constructed from durable steel with a round bore, riveted steel cage, and open closure, it offers reliable performance across a variety of machinery. This bearing is available with either a steel or brass (FY) cage and comes in multiple configurations, including sealed (2RD, 2RS, 2RU), shielded (ZZ), open, or with a snap ring (NR), providing flexibility to suit different application requirements.