The Koyo 5207ZZCD3 Double Row Ball Bearing is engineered from premium 52100 steel for strength and durability in demanding applications. With a 1.378 in (35 mm) round bore, riveted steel cage, and dual shields for added protection, this bearing is designed to support high radial and moderate axial loads. Its double-row construction enhances stability and load capacity, making it a reliable choice for machinery requiring long-lasting, efficient performance.