Abstract: A compressor comprising a sealed chamber delimited laterally by a shell, a drive shaft housed in the shell and guided relative to the other parts of the compressor via at least one bearing provided in a bearing support fixed to the internal wall of the shell. The method comprises steps consisting in supplying a shell have, in the fixing plane of the bearing support, an oval section comprising a small axis to which the bearing support is intended to be mounted, exerting a pressure on the shell in order to elastically deform it so as to increase the length of its small axis, inserting and positioning the bearing support in the fixing plane of the latter, and ceasing to exert a pressure on the shell so that the latter tends to elastically return to its original form and grip the bearing support.

Abstract: A press tool having working parts constituted by stamps and dies and attachment parts such as blank-holders, punch-holders, die-holders, and stay blocks of the tool, wherein interchangeable stamps and dies, formed from metallic removable disc like elements are held by detachable die or stamp-holders, and cradles. The cradles are intended to receive and maintain in place the die or stamp-holder, and are provided with at least one recess presenting a form complementary to that of the holders for each of the die or stamp-holders, an adjustable clamp system is provided which cooperates with an associated cradle in order to render the holder radially and axially immovable.