Hydraulic motor with a separate spool valve

A hydraulic motor comprising a front housing having a first port and a second port, a manifold, a spool valve, a drive link, and a shaft;

• wherein the front housing and the manifold form a central bore in which the spool valve, the drive link and the shaft are rotatably mounted;
• wherein the front housing, the manifold, and the spool valve define a working path between the first port and the second port so that, when pressurized fluid travels through the working path, the drive link is hypocycloidally moved;
• wherein the drive link is coupled to the shaft so that rotational motion is transferred thereto and the shaft is coupled to the spool valve so that rotational motion is transferred thereto;
• and
• wherein the coupling between the spool valve and the shaft includes a separate coupling element which floats relative to the shaft and the spool valve.