Penn Machine Company, a Marmon/Berkshire Hathaway company, is a major supplier of heavy-duty OEM and aftermarket components for the transit, railroad, mining, steel, construction and general industries. Our business is both domestic and international in scope. PMC product lines include carburized and hardened gears and pinions, resilient and solid transit wheels, axles, wheelsets, and gearbox remanufacturing. The company is a major supplier of traction gearing to the world's railroads. Our carburized and hardened Super Gear is now recognized as the standard in the railroad industry. PMC is the manufacturer of the original PCC resilient wheel and a licensee of Bochumer Verein Verkehrstechnik for their state-of-the-art transit wheelset technology.

Penn Machine Company manufactures and distributes replacement parts for coal mining equipment, heavy industry, and railroad locomotives. Its products include carburized and hardened gears and pinions, crane wheels, pulleys and components, resilient transit wheels, axles, wheel sets, and gearboxes. The company serves transit, steel, marine, and general industries. Penn Machine Company was founded in 1920 and is headquartered in Johnstown, Pennsylvania with sales offices in Twinsburg, Ohio and Blairsville and Carnegie, Pennsylvania.