An apparatus and a method for changing a Multicast and Broadcast Service channel of a terminal in a broadband wireless communication system are provided. A second member is rotationally fixed in the stationary member and has second gear teeth and third gear teeth, the second gear teeth being engaged with the first gear set of the first member. Accordingly, the inventors devised unique ferroelectric gate structures, one of which includes a high-integrity silicon-oxide insulative layer, a doped titanium-oxide layer, a weak-ferroelectric layer, and a control gate. Within the inner volume is a tray or cassette configured to be moveable within the inner volume. A secondary dual inner race is comprised of a first secondary inner race element and a second secondary race element.