A self-cooling system includes at least one rotating component and a housing configured to enclose the at least one rotating component. The housing includes at least one inlet bore and at least one exhaust bore. The at least one exhaust bore is disposed radially outward from a radial position of the at least one inlet bore with respect to an axis of rotation of the at least one rotating. The at least one inlet bore and the at least one exhaust bore are positioned to establish a pressure differential configured to circulate a fluid into the at least one inlet bore, through the housing, and out the at least one exhaust bore. The system does not have any feature in addition to the at least one rotating component configured to drive the fluid into the at least one inlet bore, through the housing, and out the at least one exhaust bore.