Abstract: The invention relates to a line bushing (1) in a housing (2) of an electrical machine (1) in explosive atmospheres, having a threaded bush (100) and a terminal stud (200), wherein the threaded bush (100) is an insulator and is located in, particularly screwed into, a recess in the housing (2), wherein the terminal stud (200) is made from an electrically conductive material and is provided, at least in sections, with a thread, wherein connection options (206) for lines and braids are provided at either end of the terminal stud (200), wherein the terminal stud (200) can be screwed into the threaded bush (100).

Abstract: An electric machine includes a rotor surrounded by a stator. An external jacket surrounds the stator and extends between front and rear end parts, thereby delimiting an inner region which accommodates the rotor, and an outer region radially surrounding the inner region. The inner and outer regions communicate with one another via recesses to enable air to flow out of the inner region and into the outer region and from there to flow back into the inner region. Front and rear closing elements are attached to the front and rear end parts on their side facing away from the external jacket, thereby enclosing a front cavity and a rear cavity. Axial tubes are fastened in the front and rear end parts such that the axial tubes extend from the front end part across the outer region to the rear end part and open in the front and rear cavities.

Abstract: The invention relates to a line bushing (1) in a housing (2) of an electrical machine (1) in explosive atmospheres, having a threaded bush (100) and a terminal stud (200), wherein the threaded bush (100) is an insulator and is located in, particularly screwed into, a recess in the housing (2), wherein the terminal stud (200) is made from an electrically conductive material and is provided, at least in sections, with a thread, wherein connection options (206) for lines and braids are provided at either end of the terminal stud (200), wherein the terminal stud (200) can be screwed into the threaded bush (100).