A gaming machine of the type that displays an array 20 of randomly arranged symbols having predetermined pay lines 30 on which the player can bet on the occurrence of a winning combination. A first embodiment of the interbrace includes a forward engine flange portion, a rearward transmission end cap portion which functions as a transmission end cap, and a connecting portion interconnecting the engine flange portion and the transmission end portion. Magnetic flux running along the magnetic path becomes saturated at the protrusion.