The Koyo 6004ZZC3 Single Row Ball Bearing is designed for dependable performance in moderate radial and low axial load applications. Made from durable steel, it features a 0.7874 in (20 mm) round bore, 1.6535 in (42 mm) outer diameter, and 0.4724 in (12 mm) overall width. With a riveted steel cage and dual shields for added protection, this bearing offers C3 internal clearance for smooth operation and stability. Its single-row design ensures reliable performance, making it a strong choice for light to medium-duty machinery.