Automatic gearbox

The invention relates to an automatic gearbox, especially for a motor vehicle, comprising a drive shaft ( 7 ), a driven shaft which is non-coaxially arranged on the drive shaft ( 7 ), a planetary gearbox which is non coaxial in relation to the drive shaft ( 7 ), a planetary gear which is coaxial in relation to the drive shaft ( 7 ) and which comprises at least one set of planet wheels ( 14 ) and at least one switch element ( 10 ) for the selective transmission of the speed of a driving motor of the drive shaft ( 7 ) on an output element of the planet gear. The automatic gearbox also comprises a chain drive ( 18 ) with constant transmission, whose drive wheel ( 19 ) is connected to the output element of the planetary gear and is coaxially arranged on the drive shaft ( 7 ), and whose driven wheel ( 22 ) is actively connected to the driven shaft by means of a constant transmission. The chain drive ( 18 ) is adjacent to the housing wall ( 2 ) of the automatic gearbox directly in the axial direction thereof. The drive wheel ( 19 ) of the chain drive ( 18 ) at least partially engages with a switch element ( 10 ) in an axial manner on the side thereof which faces away from the gearbox housing wall ( 2 ).