Gear Technology Magazine
www.geartechnology.com/articles/20079-philly-gear-a-long-life-a-new-direction

Philly Gear: A Long Life, A New Direction

January 1, 2004
Large marine gearboxes. More than a year in production, each weighing 125,000 pounds, the gearboxes were for U.S. Navy amphibious ships, for combining the power of 10,000 hp diesel engines to drive propeller shafts. They were also the last major gear products shipped from Philadelphia Gear Corp.’s King of Prussia factory.