Series 90 variable displacement 90R180 hydraulic axial piston pump is compact, high power density units. All models utilize the parallel axial piston/slipper concept in conjunction with a tilt able swash plate to vary the pump’s displacement. Reversing the angle of the swash plate on 90R180 hydraulic axial piston pump reverses the flow of oil from the pump and thus reverses the direction of rotation of the motor output. Read More