Unlockable device for axially arresting a sealing ring with which an aircraft turbomachine module rotor wheel makes contact

An aircraft turbomachine module comprising:

• a casing;
• a rotor;
• a sealing ring made of an abradable material in contact with the periphery of the rotor;
• and
• an axial arresting device for axially arresting the sealing ring, the device having a reference central first axis, the device comprising:
• a support including a support opening defining a circular track centered on a second axis parallel to the first axis and at a distance from the first axis;
• and
• an axial stop part including an extraction passage centered on a third axis parallel to the second axis and at a distance from the second axis, the axial stop part defining a complementary circular track around its periphery cooperating with the circular track of the support to allow the axial stop part to rotate relative to the support along the second axis, between an axial stop position for the sealing ring, and a position for extraction of the sealing ring through the extraction passage, a distance between the first and third axes being larger in the extraction position than in the axial stop position.