ELECTRO-HYDRAULIC BRAKE SYSTEM

An electro-hydraulic brake system includes a master cylinder block in communication with a reservoir tank containing a brake fluid. A protrusion extends from the master cylinder block to a terminal end. The master cylinder block defines a channel extending along a center axis into the protrusion. A pressure supply unit includes a housing defining a chamber and is in communication with the reservoir tank. A displacement piston, slidably disposed in the channel, extends between a primary end located in the chamber and a secondary end located in the channel. An actuator is disposed in the chamber, rotatably coupled to the displacement piston, for axial movement along the center axis. A first anti-rotational member is disposed in the channel, coupled to the terminal end, for engaging the secondary end to prevent rotation and translate rotational movement of the actuator into the axial movement.