Abstract: The invention relates to an installation assembly (10) for an electric machine (motor or generator) and to a method for producing such an installation assembly (10). Installation assemblies (10) comprising a rotor shaft (16), a rotor (12) anchored on the rotor shaft (16) in a rotationally fixed manner, and a rotor device (20) which rotates together with the rotor (12) are known for example from electronically actuatable machines (motors or generators). The invention relates to an advantageous design of the rotor device (20). According to the invention, means (28a, 28b; 28c) are arranged on the rotor device (20) for fixing the rotor device (20) on the rotor (12) in a part comprising the rotor device (20), wherein the means (28a; 28b; 28c) protrude from the rotor device (20) in the direction of the longitudinal axis L of the rotor shaft (16) and can be introduced into paired recesses (28a; 28b; 28c) of the rotor (12).

Abstract: Fastening device (1) for an armature lamella stack (2) of a DC motor, characterized in that the fastening device (1) is disposed between the armature lamella stack (2) and a shaft (3) of the DC motor and is designed as a torsionally soft connection of said armature lamella stack (2) to the shaft (3).

Abstract: The locking module for locking a steering column, the locking module being of the type comprising two locking flanges mounted to move relative to each other between a locking configuration for locking the steering column and a releasing configuration for releasing the steering column. The locking module further comprises cam-forming means. The two flanges are mounted to move relative to each other along a control movement path. The locking module further comprises a locking device distinct from the cam-forming means and adapted to lock the two locking flanges in their locking configuration. Application to motor vehicle steering columns.