The Nachi 5218ZZ is a double-row angular contact ball bearing designed for high-performance applications. It features an inner diameter of 90 mm, an outer diameter of 160 mm, and a width of 52.4 mm. The bearing is double shielded and made in Japan, ensuring durability and reliability. With a contact angle of 20 degrees, it offers a dynamic load capacity of 138,000 N and a static load capacity of 133,000 N. The maximum speed is 2700 rpm with grease lubrication and 3900 rpm with oil lubrication. This bearing is ideal for applications requiring precise angular contact and high load-bearing capabilities.