body as a cast iron body this is subsequently turned or ground in the area of the later friction face not visible in fig1 in addition the contact faces 2 for the angles 5 used as connection elements and shown in fig2 are milled in the ring body 1 or formed in this body in a different way these contact faces 2 are arranged on the side of the cast iron body 1 opposite the friction face i e u201c the back side u201d in the area of these contact faces 2 according to the present embodiment at least one rivet hole 3 is formed so that the angles 5 could be connected to the ring body 1 to form a multiple part pressure plate as can be inferred from fig1 a recess 4 is also formed on the contact face 2 wherein this recess is used as a holder for a reinforcing area 8 that is formed in the angles 5 and will be described in more detail below the number and construction of the rivet holes 3 and also the number and shape of the recesses 4 as well as the number and shape of the reinforcing areas 8 can be adapted freely to the.