The 7306B angular contact ball bearing features a 30mm inner diameter, 72mm outer diameter, and 19mm width, designed to handle combined radial and one-directional axial loads. Constructed from durable 52100 chrome steel with options for pressed steel, brass, or phenolic cages, it offers a contact angle of 40 degrees for enhanced thrust capacity. It supports dynamic load ratings around 32,000 to 36,600 N and static load ratings near 20,000 to 21,000 N. Speed limits vary by lubrication type, typically up to 7,500 RPM with grease and 10,000–13,000 RPM with oil. Ideal for spindles, gearboxes, and high-speed industrial applications.