Drive unit having a thrust washer as well as methods for producing such

Drive unit (10) and processes for producing such, in particular for adjusting movable parts in a motor vehicle, having a drive shaft (17) of metal, which is supported by means of at least one radial bearing element (28) in a housing (11), wherein the drive shaft ( 17) has two end faces (42), of which at least one as an axial stop (via a thrust washer 44) is supported on the housing (11), said thrust washer (44) (of a self-lubricating material 49) is made of the axial stop on the life of the drive unit (10) without the use of additional, separate lubricants lubricated.