The Optimum® series of gear pumps/motors is designed for durability, featuring a rigid pump design for long product life and maintained performance. Available in three frame sizes (W, X, and Y) and tandem or triple configurations, the series possesses flow ranges from 6-63 gpm and 1,000 rpm and pressures up to 4,350 psi. With its patented OPTI-GRIP® technology, the pumps/motors resist casting separation through greater structural integrity. In addition to a full-featured design, the series features a 13-tooth gear design that provides smoother operation and reduces hydraulic noise.