Transmission housing unit having an axial disk

A transmission housing unit, comprising:

• a shaft;
• a housing base body for receiving the shaft extending along an axial direction, said shaft being mounted rotatably about the axial direction in the housing base body,
• wherein the housing base body has a first guide surface that points in an opposite direction to the axial direction transversely to the axial direction and has a second guide surface that points in the axial direction and runs obliquely to the axial direction,
• wherein the shaft has a first end face supported on the first guide surface and a second end face supported on the second guide surface;
• and
• a compensating arrangement that forms a wedge system that compensates play of the shaft in the housing base body, the compensating arrangement having at least two opposite flat sides and being interposed between the shaft and the housing base body,
• wherein, the compensating arrangement is configured in a wedge shape and is arranged in the housing base body so as to be displaceable along the second guide surface in a feed direction transversely to the axial direction, in order to increase a distance between the second guide surface and the second end face and to compensate for axial play of the shaft,
• wherein the compensating arrangement includes a wedge-shaped wedge element resting on the second guide surface and a plane parallel axial disk resting on the second end face,
• wherein the axial disk and the housing base body have corresponding geometric unbalances in accordance with the poka-yoke principle so that in an incorrect orientation of the axial disk and the housing base body relative to one another further assembly of the transmission housing unit is geometrically or mechanically prevented and so that the axial disk is only inserted in a single orientation into the housing base body in an assembled condition, wherein the unbalance on the axial disk is formed by an unsymmetrical radial outer contour of the axial disk, wherein the housing base body has a corresponding inner contour.