The paper dwells on the original construction of a front centre with axis deformable membrane. The measuring of the membrane has been documented via the method of finite elements. The axis deformation achieved considerably exceeds the range of depth of the central openings and the maximal tensions in the most dangerous sections are held under the permissible levels for constructional steel. It has been experimentally proven that the radial stability of the proposed centre is practically identical to that with a hard front centre.