Variable displacement pumps in closed loop; 3 basic design units and 8 max. displacement sizes of 14, 18, 21, 28, 35, 46, 56, 64 cc/rev; various control options; max. nominal pressure 300 bar, 350 bar peak; driving speed: 700 rpm min., 3.600 rpm max.; SAE driving shafts and mounting flanges; optional rear PTO