Pressing device

Pressing device for relative axial displacement of two parts arranged coaxially with one another and displaceable towards one another only by means of high pressure, comprising a housing, a press plate displaceable axially in the interior of the housing, a number of pressure cylinders arranged in an annular manner at equal angular spacings and intended for axial displacement of the press plate, an insert having coaxial annular engaging edges for engaging the parts to be pressed, characterized in that the insert consists of two half-shells which when assembled form a substantially cylindrical shape and which in turn consist of three ring halves, on the insides of which said engaging edges are formed and the outsides of which are provided with all-round ribs which engage annular grooves on the housing and on the press plate.