of the friction ring 4 is also elastically deformable in this embodiment if the assembly 1 is now transitioned from the relief state into the load state the installation surface 302 is elastically deformed by the contact surface 7 of the synchronizer ring 6 by so much until the installation surface 302 has adapted to the geometrical shape of the contact surface 7 in the load state the installation surface 302 hereby undergoes a preload fig3 b shows the assembly 1 in the load state of the synchronizing process the synchronizer ring 6 is in this respect displaced in the direction of the gear wheel 8 to be synchronized such that the contact surface 7 of the synchronizer ring 6 contacts the installation surface 302 of the friction ring 4 whereby a friction contact arises between the friction surface 301 and the gear wheel 8 and a speed of revolution matching takes place between the gear wheel 8 and the friction ring 4 and thus the synchronizer ring 6 in the load state the geometrical shape of the installation surface 302 is circular i e the first radius of curvature r 1 of the installation surface 302 is likewise constant in the peripheral direction u in the load state the installation surface 302 of the friction ring 4 returns into its original load free state again on the transition of the assembly 1 from the load state into the relief state due to its elastic deformation on the transition of the assembly 1 from the load state into the relief state some of the adhesion force that acts between the installation surface 302 and the contact surface 7 is overcome by a.