The Nachi 5306ZZ is a double-row angular contact ball bearing featuring a 30 mm inner diameter, 72 mm outer diameter, and 30.2 mm width. It has a contact angle of 20 degrees and is double shielded for protection against contaminants. Constructed from high-quality steel with a riveted steel cage, it offers a dynamic load capacity of 41,500 N and a static load capacity of 29,000 N. The bearing supports speeds up to 7,000 rpm with grease lubrication and 9,500 rpm with oil lubrication, making it suitable for high-performance applications requiring durability and precision.