Abstract: A locking device for a maintenance machine such as a balancing machine, of a rotating body (5), having a fixed portion comprising a hollow fixed support element (2) borne by the maintenance machine, and a control system (59), and a movable portion comprising a bell-shaped member (12) with flange (13) mounted for rotation coaxial to said hollow support element (2) and designed to support the rotating body (5), and holding or locking means (68) arranged to removably fix the rotating body (5) against said flange (13) of the bell-shaped member (12), driving means suitable for driving, upon control, said movable portion in rotation.

Abstract: A handling device for a resistant load includes a guide track (2) or a plurality of parallel guide tracks, a pair of slides or carriages (10a, 10b) slidingly mounted on a guide track (2) or a respective guide track, removable locking means (6a, 6b) associated with each slide or carriage (10a, 10b) and designed to keep in position its respective slide or carriage along the respective guide track (2), a linear actuator means (3) associated with each slide or carriage (10a, 10b) and having at least one first component (4) and at least one second component (5a) which can be displaced, upon control, one with respect to the other parallely to the guide track (2) or plurality of parallel guide tracks, the at least one first component (4) being displaceable together with a slide or carriage (10a) of the pair, and the at least one second component (5a) being displaceable together with the other slide or carriage (10b) of the pair, engagement means (7a, 7b) for a resistant load displaceable together with the linear act

Abstract: A locking device for a maintenance machine such as a balancing machine, of a rotating body (5), having a fixed portion comprising a hollow fixed support element (2) borne by the maintenance machine, and a control system (59), and a movable portion comprising a bell-shaped member (12) with flange (13) mounted for rotation coaxial to said hollow support element (2) and designed to support the rotating body (5), and holding or locking means (68) arranged to removably fix the rotating body (5) against said flange (13) of the bell-shaped member (12), driving means suitable for driving, upon control, said movable portion in rotation.