The Nachi 5220 angular contact ball bearing features a 100 mm bore diameter, 180 mm outer diameter, and 60.3 mm width, designed as a double-row bearing with a 20-degree contact angle. Constructed from steel with a pressed steel cage, it offers a dynamic load rating of 168,000 N and a static load rating of 159,000 N, ensuring high durability and performance under heavy loads. This open-type bearing is precision-engineered for applications requiring robust axial and radial load handling. The bearing’s dimensions and load capacities make it suitable for demanding industrial machinery and equipment requiring reliable rotational accuracy and longevity. The Nachi 5304 bearing is a single-row angular contact ball bearing with a bore size of 20 mm, outer diameter of 47 mm, and width of 14 mm. It is designed for high-speed applications with a dynamic load rating around 12,000 N and static load rating near 6,500 N. The bearing is made from high-quality steel, providing excellent wear resistance and operational stability. Its compact dimensions and robust construction make it ideal for precision equipment and machinery requiring efficient load distribution and smooth rotation.