U.M. Plopeni gear motors are essentially identical in design with the gear pumps and they mainly consist of a pair of gear (1) and (2) turning in a housing (3) and supported by the bearings.

The end cover (5), the flange (6) and the housing are assembled together by means of the screw (7). The thrust pressure seals (8) and the shaft seal (9) provide the unit safe sealing.