Rotary axial piston pump

A rotary axial piston pump comprising:

• a housing;
• a swash plate, the swash plate having an inclined surface formed from a ceramic material;
• a rotor assembly positioned adjacent the swash plate, the rotor assembly comprising a metallic rotor-drum having at least one cylinder bore disposed therein, and having metallic piston(s) disposed within the respective cylinder bore(s), the pistons having a ball-shaped end extending from the cylinder bore(s);
• at least one slipper formed from a ceramic material and interposed between the swash plate and the rotor-drum, the slipper(s) comprising socket joints for accommodating the piston ball-shaped end(s) therein, the slipper(s) having a swash plate interface surface in contact with the swash plate inclined surface and formed from a ceramic material, and wherein the slipper socket joint comprises a plastic material disposed therein that is in contact with the piston ball-shaped end;
• a stator plate positioned adjacent an end block disposed in the housing open end;
• and a rotor plate interposed between the stator plate and the rotor-drum;
• wherein the stator plate comprises an interface surface in contact with the rotor plate that is formed from ceramic material, and wherein the rotor plate comprises an interface surface in contact with the stator plate that is formed from a ceramic material.