In this paper, running performance of single-axle bogie is deeply analyzed, and the feasibility of using single-axle bogie in urban vehicles is discussed.

The optimum parameters arc picked up which will ensure the single-axle bogie for better comprehensive performance including lateral stability, riding quality and negotiation.

In the 3rd chapter, the design of the single-axle bogie is introduced in detail, and it is shown that the main parts and assemble may be different from the conventional bogies.