6. A method of manufacturing a rotating electrical machine housing produced from a mold comprising:forming a mold comprising a top part, a bottom part, a first side part, a second side part and a center part;
attaching a bracket portion extending from a peripheral surface of the center part to a top part recess formed in an inner surface of the top part;
assembling the bottom part to the center part;
engaging two sets of first and second shoulders extending from the peripheral surface of the center part into first and second side part recesses, respectively, formed in an inner surface of each of the first side part and the second side part;
positioning box-shaped extensions formed in inner surfaces of the first and second side parts, respectively, over the peripheral surface of the center part; and
depositing cast metal in the formed mold;
wherein the first side and the second side parts have a symmetric profile; and
wherein the first side part and the second side part are mounted laterally and externally onto the peripheral surface of the center part.