Geared turbomachine

The geared turbine machine (1) is provided to integrate a transmission and an input- and output drive unit (A1) into a machine train, where the integrated transmission comprises a central large wheel with a large gear shaft (13) and the multiple pinions with pinion shafts (11,16,17). Every ends of pinion shafts are operatively connected with input- and output drive units, where the large gear shaft is operatively connected with one input- and output drive unit. The input- and output drive unit is a mono-or multi-stage overhung axial expander.