Product Description
The Zimmermann Coat-Z brake disc provides a protective coating that prevents rust and corrosion, extended rotor life and improved visual appearance. The composite or compound brake disc named Formula Z is suitable for motorsport applications due to its special design. In contrast to the fully cast-iron brake disc, the friction ring (cast iron) and hub (aluminum alloy) are connected by steel pins. The resulting, floating construction reduces the thermal buffering of the friction ring in the operating temperature state substantially, because the friction ring can freely expand under thermal stress (e.g. when braking from high speeds or several consecutive brake applications) . Zimmermann brake discs are usually made of cast iron (with flake graphite) of different qualities; they correspond to the material used for the original spare parts. Therefore, the utilization of such materials (referred to as High Carbon by the competition) has always been a matter of course for Otto Zimmermann. Based on the latest developments in the casting technology, the cooling process after moulding is controlled in such a way that the tension relief is already guaranteed from the foundry on. The cost-intensive glowing of the raw or semi-finished parts (>>> slow heating to the annealing temperature, maintaining this temperature for several hours and then slowly re-cooling) can therefore be omitted nowadays. The following run-in notices are recommended to ensure a safe and proper operation of the brake disc / brake pad system Vented Product Features: Coat-Z protective anti-corrosion coating Noticeable improvement in the braking power of your vehicle. Prevention of brake fade. Permanent expulsion of brake dust and water. Countersinking of holes doubles up as wear indicator. Excellent deceleration action and no distortion of friction ring at high temperatures Substantial weight saving and therefore less unsprung mass Floating mounting enables radial expansion of the brake disc under relatively heavy loads, thus preventing shielding and increasing resistance to heat cracks Hot spot prevented by optimized design of ventilation channels 1:1 exchange of original disc possible. Most Brake Rotors products are available for in-store pickup from Advance Auto Parts.
