• Roller vanes to reduce friction and internal leakage and to maintain efficiency. • Zero leak commutation valve provides greater, more consistent volumetric efficiency. • Wheel mount version available. • More starting torque than competitive motors in applications where the shaft is side loaded. (Competitive brands require more pressure to start the motor.) • A needle-roller mounted coupling shaft and steel-caged thrust bearing which can withstand 1000-pound thrust loads. • Side load capacity is 1600 lbs. (727.3 kg) maximum at center of output shaft. • A unique high-pressure shaft seal that eliminates the need for case drains, check valves and extra plumbing. • Up to 17 horsepower output. • Greater durability due to superior lubrication and minimum drive spline wear. • Patented 60-40 spline member arrangement transmits more torque with less weight.