Motor vehicle disc brake friction lining with wire helical spring

A motor vehicle disk brake friction lining comprising:

• a carrier plate at least partially coated on one side with a friction material, having a protrusion therefrom which at least partially defines a cavity;
• a wire helical spring fixably mounted with a clamping fit, in a straddling position on the protrusion, wherein the spring is a friction lining hold-down spring bent symmetrically with respect to a radial axis and asymmetrically with respect to a spring longitudinal axis and an axial axis;
• a spring saddle formed by the cavity in the protrusion with respect to a carrier plate longitudinal axis and which has a stepped and lowered profile and which has a narrowed holding edge which delimits the cavity;
• two helical spring winding regions offset and spaced apart diametrically with respect to one another wherein the holding edge elastically engages each of the winding regions in a form-fitting spreading manner between the winding regions, such that the wire helical spring is mounted in form-fitting fashion over the spring saddle and rotationally fixedly on the carrier plate;
• two limbs of the wire helical spring are oriented in a tangential direction and spread laterally to the sides, wherein the limbs define supporting portions at the ends for abutment against a brake caliper housing;
• and
• wherein the wire helical spring is formed from a non-rusting, alloyed steel wire material;
• rust-protected steel wire material, and the limbs engage with shaped profiles over the protrusion such that support contact points on the supporting portions of the limbs, arranged substantially centrally in alignment with the carrier plate longitudinal axis, and wherein the support contact points are below the protrusion along the radial axis.