a bogie apparatus includes a chassis , rotation bogie parts respectively disposed at both ends of the chassis , and a composite motion bogie part located at a middle portion of the chassis . each of said rotation bogie parts includes a circular upper inner ring permanent magnet fixed on a lower surface or a bottom surface of the chassis . a first bogie located under the chassis and having a bogie body is also added . a circular lower inner ring permanent magnet disposed on an upper surface or a top surface of the bogie body of the first bogie may be included . the inner ring may have inner and outer diameters substantially identical to those of the upper inner ring permanent magnet , and aligned with the upper inner ring permanent with a predetermined distance therebetween .