The NACHI 5216-2NS is a double-row angular contact ball bearing designed for demanding applications, featuring an 80 mm bore, 140 mm outer diameter, and 44.4 mm width for robust performance in compact spaces. It offers a 20-degree contact angle, delivering high radial and axial load capacity with dynamic and static load ratings of 104,000 N and 94,000 N, respectively. The bearing is double-sealed for enhanced protection against contaminants, uses a pressed steel cage for durability, and supports maximum speeds of 3,500 rpm (grease) or 4,600 rpm (oil). Its precision engineering ensures reliable operation in industrial machinery, with no flush ground or filling slot, and meets ABEC 1/ISO P0 tolerance standards for consistent quality.