Multipart Brake Disc, Friction Disc Ring Part, Securing Element, and Method for Producing a Brake Disc

A multi-part brake disk,

• in particular a lightweight brake disk,
• with a friction disk ring part and with a receiving pot part,
• in which the friction disk ring part is arranged radially outside on the receiving pot part torque-proof,
• in which the friction disk ring part and the receiving pot part are additionally operatively connected to one another by means of at least one elongate fastening element, whereby the at least one elongate fastening element is arranged in a through-hole of the receiving pot part and in a bore hole of the friction disk ring part,
• wherein
• the at least one elongate fastening element is arranged merely inserted into both the receiving pot part and the friction disk ring part, and
• the at least one elongate fastening element is arranged in a frictionally locked manner in the friction disk ring part,
• wherein, optionally, the at least one elongate fastening element and/or the receiving pot part can have a surface coating, in particular a corrosion coating.

A method for producing a brake disk from several functional parts,

• in which a friction disk ring part with an inner diameter Di is arranged on a radially outer receiving surface with an outer diameter Da of a receiving pot part,
• in which the inner diameter Di and the outer diameter Da are selected
• with a ratio Da/Di of 1.00088 or greater
• or
• with a ratio Da/Di of 1.00027 or less
• before the friction disk ring part is arranged on the receiving surface, on which,
• after arranging the friction disk ring part on the receiving surface,
• a through-hole and a bore hole are each made in the friction disk ring part and in the receiving pot part in a single drilling process,
• and in which an elongate fastening element is introduced from radially further inside through the respective through-hole into the respective corresponding hole,
• whereby the elongate fastening element is fastened in the bore hole of the friction disk ring part at least partially by frictional engagement and/or by positive engagement.