Conventional brake discs include ventilated brake discs for the front axle and solid brake discs on the rear axle.
Buderus Guss manufactures conventional brake discs for wheel sizes from 13'' to 22.5'' with unit weights of 5 kilograms to 45 kilograms from the materials EN-GJL-150 to EN-GJL-250 unalloyed and alloyed in accordance with DIN EN 1561 and customer specifications.

The demands on the brake disc are enormous. It must have high strength over the entire temperature range and at the same time allow only very slight deformation. The friction ring can reach temperatures of up to 700 degrees Celsius. In extreme cases, the braking power occurring during braking is several times the maximum engine power.

90 percent of the heat generated in the braking process initially penetrates the brake disc, where it is virtually stored for a moment, before being discharged again into the surrounding environment. The brake disc functions like a heat exchanger, but only has a limited capacity for heat absorption. To avoid damage due to overheating, the heat must be discharged into the surrounding air as soon as possible.

Ventilated brake discs have a far larger surface area than solid brake discs and one which is far better suited to facilitate this heat exchange process.

The friction rings are interconnected via bars in the form of ribs or studs. Rotation generates air suction, which in turn sucks the air from inside the brake disc via the ventilation duct and outside. The air which comes into contact with the brake disc surface during this process absorbs heat energy and dissipates it externally.