PRODUCTS MORE SERVICES MORE FACILITIES MORE Worldwide RELATIONSHIPS Power Transmission Services has an extensive relationship with other gearbox manufacturers for acquiring replacement parts. O.E.M. OR USIf O.E.M. parts art not available, they can be manufactured for your particular needs. extended servicesOur extended services also include rebuilding ABB/Philadelphia AirPreheater drives. OUR SPECIALITYWe specialize in quick, high quality repair of all makes and types of gearboxes and pump drives.