A magnetic gap is provided between a permanent magnet of a rotor and an auxiliary magnetic pole portion which is arranged adjacent to the permanent magnet in a peripheral direction. The method includes mapping a first zone, corresponding to broadcast service data of a first type, and a second zone, corresponding to broadcast service data of a second type, in a frame individually. Each track forms a continuous loop around an infield protrusion and is filled with a plurality of rolling elements filling. Unimpaired workers applying accepted principles of maximum utilization of the human anatomical structure are placed at substantially reduced risk of lower back injury while lifting with this device.