Union Transmission use a special iron alloy (as same as Commercial Hydraulics) for shaft end covers, gear housings and port end cover castings to added the strength and bearing quality. This extra care in metallurgy, our solid engineering experience and precision manufacturing assures more hours of trouble free running for your pumps or motors. The gear sets are cut in our advanced machines to extremely close tolerances, which can gives a true involute profile for the full length of each gear tooth, assuring maximum volumetric operation, no headaches with hand matched gear sets and longer operating time without rebuilding work. Here are just a few of the reasons why Union Transmission components are tough and durable under serve conditions, also a better buy than other competitive suppliers. Union Transmission will continue to offer the industry's most lines of hydraulic components available. We are ready, whenever and wherever you need us, just send your samples or drawings.