Disc brake with energizing ring

A disc brake and energizing ring assembly, comprising:

• a disc for a disc brake arranged about a rotation axis defining an axial direction, a radial direction orthogonal to said axial direction, and a tangential or circumferential direction perpendicular to said axial direction and said radial direction;
• said disc composed of a first material and comprising:
• a braking band adapted to cooperate with opposite braking surfaces thereof with a brake caliper;
• a bell connecting the brake disc to a hub of a vehicle;
• a first connecting portion between said braking band and said bell;
• a second connecting portion connected cantilevered to said bell to avoid interference with said braking band and forming an end surface arranged parallel to the radial direction;
• the energizing ring comprising:
• an energizing ring body having an energizing side, opposite to said disc, and coupling side, facing said disc;
• a plurality of projections and/or recesses provided in said energizing side;
• a second material more resistant to corrosion than the first material;
• wherein at least a coupling portion cantilevers from said energizing ring body in the axial direction and includes a free end portion;
• said free end portion of the coupling portion is received in said second connecting portion passing through said radial end surface;
• said second connecting portion surrounding said free end portion of the coupling portion, and extending intermediate said energizing ring body and said free end portion of the coupling portion;
• said free end portion of the coupling portion includes undercut portions closely surrounded by the second material of the second connecting portion of the disc forming a non-detachable geometric mating.