The 53.01.382 clamping fingers support ring is a technical spare part for the Gildemeister DMG Mori GM16AC multi-spindle lathe and for the opening and closing unit of the 9023E bar clamping collet used for machining bars up to a maximum diameter of 16 mm. The component works in stable contact with joint 5301388 and provides the reaction point and fulcrum for nose piece 5301387. When closing bell 5301386 slides on sleeve 5301389, the geometry of the assembly transfers movement to the nose pieces and enables the correct kinematic action required to open and close the collet. In this position the ring is not a simple spacer, but a support and contrast element that keeps the clamping group correctly positioned, reduces abnormal clearance and contributes to repeatable bar clamping. Its condition is important for continuous operation on the GM16AC, because a worn support face can change the useful stroke of the nose pieces, make the 9023E collet closing movement irregular and reduce bar stability during feeding, gripping, machining and release. Correct operation of the bar clamping group also affects the secondary kinematic functions of the machine, because stable bar holding supports the synchronization of the multi-spindle cycle with feeds, radial and axial slides, front toolholder spindles and auxiliary systems involved in the machining sequence. Ring 5301382 is therefore an important wear part and should be checked during routine and corrective maintenance. Replacement is recommended when the working face shows incisions, front impressions caused by the nose pieces, local deformation or uneven contact marks, as these conditions can reduce movement accuracy and increase wear on the mating components.