The invention relates to a wear assembly and to the different components thereof, comprising at least one tooth or wear element and a tooth-holder or adapter element, which is intended for wear applications in a machine that is used to move materials such as earth and stones. More specifically, the invention relates to a wear assembly and, in particular, a system for coupling the different components to one another using a characteristic coupling system and at least one retention system which is used to couple and anchor said different components, namely the wear element and the adapter. According to the invention, the aforementioned adapter is in turn connected to the blade at the front edge of a ladle or bucket belonging to a machine that is used to move materials, such as an excavator or similar.