The Fafnir 3MM9122WI-TUM Angular Contact Ball Bearing delivers lasting precision for industrial power transmission and automation. Made in the United States, this New Old Stock unit comes in a 110 mm bore, 170 mm outside diameter, and 28 mm width, all in a single-row open design with a phenolic cage and bearing steel construction. The package includes three bearings for convenient replacement in matching assemblies. Designed to handle high axial loads, it features a 25 degree contact angle and ABEC 7 / P4 precision for tight tolerances and smooth operation at speeds up to 7500 rpm. Dynamic load rating is 85.8 kN (19300 lbf) and static load rating is 73.5 kN (16500 lbf), providing dependable performance under load. The operating temperature range spans minus 30 to plus 120 degrees Celsius, making it suitable for demanding environments. Preload is medium, and the mounting arrangement is universal for flexible installation. This open bearing does not include a snap ring, and cross references to SKF 7022 ACD/P4A can support compatibility planning. Ideal for machine tools, conveyors, robotics, and automation equipment, the 3MM9122WI-TUM combines robustness, precision, and ready availability to keep critical systems running with minimal downtime.