The 3501119 bushing is a support and centring component used in the bar clamping collet control assembly of Gildemeister DMG Mori GM35 and GM35AC multi-spindle lathes. The component rests steadily against the 3501118 ring nut of the main spindle and works as a mechanical fulcrum and reaction point for the 3501130 clamping fingers. When the 3501132 bell slides on the 3501131 sleeve, the assembly transfers the movement required for the opening and closing phase of the 9069E bar clamping collet, used for machining bars up to a maximum diameter of 35 mm. The correct front contact surface of the bushing allows the clamping fingers to work with regular support, reducing abnormal play, misalignment, closing impacts and irregularities in bar clamping. Within this kinematic system the bushing is not only a simple support element, but also contributes to the continuity of the axial collet control, the repeatability of the closing movement, the stability of the main spindle assembly and the correct distribution of the thrust forces generated by the bell and sleeve. Its efficiency is also important for secondary machine kinematic functions, because a worn support can affect the regularity of the automatic cycle, the synchronisation of connected groups, the transmission of motion to front toolholder spindles, the behaviour of radial and axial slides and the accuracy of auxiliary systems that depend on stable bar clamping. It is a wear part and must be checked during preventive and extraordinary maintenance. Replacement is recommended when the contact surface shows scoring, frontal marks left by the clamping fingerss, local deformation or impact marks that may compromise correct support. This spare part is intended for maintenance technicians, specialised workshops, production departments, machine builders and service operators working on Gildemeister DMG Mori GM35 and GM35AC multi-spindle lathes who need to keep the 9069E bar clamping collet opening and closing system efficient.