Donaldson Torit® Clears the Smoke at United Gear & Assembly WSO-145 Mist Collector How many gear hobbers does it take to fill a 24,000 square foot room with smoke in less than 20 minutes? Just one. United Gear & Assembly, Inc. (UGA) manufactures gears and shafts for motors, generators, transmissions and drive trains used by OEM manufacturers worldwide, including custom gear and shaft products designed to meet rigid specifications. The company’s Hudson, Wisconsin manufacturing plant needed to reduce the amount of smoke generated from its hobbers during the gear production process. Hobbing is a multipoint machining process in which gear teeth are progressively generated by a series of cuts with a helical cutting tool called a hob. Gear hobbing uses sulfuric oil, which generates a high degree

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