Abstract: Apparatus and methods are described herein for providing a cooling system for an electromagnetic machine. In some embodiments, an apparatus includes a structure for an electromagnetic machine including a first outer support member that is configured to support a conductive winding or a magnet and a second support member that is disposed at a non-zero distance from the first support member. An elongate structural member has a first end coupled to the first support member and a second end coupled to the second support member and extends between the first support member and the second support member. The elongate structural member defines an interior channel that extends between the first end and the second end of the elongate structural member. The channel is configured to convey a cooling medium therethrough to cool at least a portion of the electromagnetic machine.