Sturdy construction throughout makes Parker’s TF Series mo-tors suitable for the most severe applications. The powertrainuses unique 60:40 spline geometry for strength. All splines areconstantly flushed with cool fluid for durability. Roller vanesand sealed commutation assure high volumetric efficiency,smooth low speed operation and extended life. Shaft sealscan withstand full system pressure and are washed in coolfluid for long life.