Resumen
PROBLEM TO BE SOLVED: To provide a single axle wheel set equipped with an external suspension support part for railway rolling stock equipped with a pendulum suspension. SOLUTION: This wheel set is constituted of a flat and horizontal chassis attached with an independent movable wheel, and a vertical suspension support part positioned at an external part of the wheel with upper part mutually connected by a crossbar forming a portico. A suspension spring is disposed on the upper part.