CHANGEABLE-GAUGE WHEEL SET COMPRISING A WHEEL AND A MOVABLE DISC ASSEMBLY

A movable disk assembly of a gauge-changing wheelset is provided, which includes: a movable disk (8) having a central through hole and a connecting hole (82) located outside of the central through hole; and a bearing (9) having an outer ring fastened in the central through hole and an inner ring fixed around an outer hub of a wheel (4).