Stirnradgetriebe

The invention relates to a spur gear transmission comprising at least two toothed spur gears which are each mounted on a shaft and the gear teeth of which mesh with one another in pairs; wherein the spur gears each have a radially outer periphery and two axial sides facing away from one another, and the spur gears are enclosed by an inner housing over most of their radially outer periphery and over most of their axial sides facing away from one another, which inner housing in turn is completely enclosed by an outer housing positioned separately thereto; wherein the shafts are mounted in the outer housing and the inner housing is supported by the outer housing; and at least a first one of the spur gears is mounted by means of its shaft with an axial bearing or axial-radial bearing in the outer housing and at least a second one of the spur gears is mounted so as to be axially supported against the first one of the spur gears by means of a thrust cone bearing in one or both axial directions of its shaft. The spur gear transmission according to the invention is characterised in that the thrust cone bearing is positioned at least in part inside the inner housing and is at least in part covered radially outwardly by the inner housing.