Permco, 1540 Frost Rd, Streetsboro, OH 44241, US

Permco manufactures high-pressure hydraulic gear pumps and motors, dump pumps, flow dividers, filters, intensifiers, replacement parts and accessories. Both roller-bearing series and sleeve-bushing series are available in a wide variety of sizes and configurations. Starting as the Perfection Machining Company in 1964, Permco began by designing and manufacturing replacement parts for the mining industry. In 1968 the name was officially changed to Permco and the development of replacement hydraulic parts was under way. In 1974 Permco expanded its manufacturing capabilities to include cast iron parts, which enabled it to offer complete units. The company maintains its headquarters in Streetsboro, Ohio.