being forced against the second axial stop of the drive element by a material deformation of the drive element application_number US 99479906 A description transmission drive unit 10 shown in fig1 is composed of a first assembly 12 with which a shaft 15 designed as a spindle 16 with a drive element 18 located thereon is supported in a support tube 14 drive element 18 being designed as a wormwheel 19 support tube 14 is manufactured e g using deep drawing and includes u2014 on an end region 20 u2014 a pot shaped bearing receptacle 22 for drive element 18 spindle 16 extends out of support tube 14 through opening 24 in pot shaped bearing receptacle 22 and is connected with body 99 e g via a counternut 98 which is not shown in fig1 with this exemplary embodiment the other spindle end 26 is located inside support tube 14 and is supported axially and radially via an end shield 28 that is attached inside support tube 14 to its inner wall 70 to this end jacket regions 8 of support tube 14 are reshaped radially inwardly so that the regions of material deformation 82 create a form fit connection with radially extending back side 84 of end shield 28 as a result end shield 28 is pressed against drive element 18 and drive element 18.