Without question, brakes are the most powerful, and important, system on your vehicle. The mechanical and thermal stresses acting on the brake disc itself are extremely high. For this reason it’s imperative they’re up to the job, and perform just as they’re intended. Like all our braking product, our discs are made to mirror the OE. That’s why if the OE disc has it, the Delphi disc has it too. Be it coated, cross drilled or high-carbon…it’s a given. So whatever the technology, you can be assured that every Delphi disc has been designed, engineered and manufactured to provide the very best braking performance. Just like the OE.
Fully coated brake discs
Thanks to a special zinc-flake, silver Geomet coating, combined with the fact that we cover the entire surface, Delphi’s coated brake discs offer greater corrosion protection compared with oil-dipped or partially painted and coated equivalents, whilst also being more cosmetically appealing. The coating also stays in place longer, with salt spray resistance of up to 240 hours, versus less than 100 hours for many partially painted discs. And because they have no oil to clean off, they save valuable labour and service time. All this makes for a better protected disc that’s easier to install, easier to dismount…as well as being easy on the eye too. You can’t ask for more than that!
To read more about Delphi’s coated brake discs read here
ECE R90 certified discs
It should come as no surprise that our brake discs for new vehicles launched post 1st November 2016 are R90 certified, alongside a range of discs fitted to popular older vehicle applications. After all, as a leading tier-one OE manufacturer we’ve been meeting these quality standards for many years – our discs have always been engineered, tested and validated to meet the same levels of performance and durability as the OE. The only difference today…Delphi discs now undergo official ECE R90 testing schedules, mainly in Germany, including the same performance, dynamic friction comparison, high load integrity and thermal fatigue analysis to formally certify that it performs to a prescribed tolerance of the OE part it is intended to replace.
To read more about Delphi’s R90 certified brake discs and why it matters read here
Our high-carbon discs use twice the amount of carbon than our normal discs. Why is that good? Simply put, the added carbon provides improved thermal behaviour and greater stability for even better performance. This helps to both reduce the risk of thermal cracking under high-temperature loads, and allows the discs to operate at a cooler temperature, for a more consistent braking performance. It also increases their resistance to distortion or warping for added durability and, of course, looks. All while delivering noise and judder free braking.
As well as looking cool from behind your wheels, Delphi’s cross-drilled discs will keep your brakes feeling the same way – cool. Designed with specific performance requirements in mind, the cross-drilled holes dissipate heat, and eliminate any brake dust or gases generated when the pads come into contact with the discs. This helps to keep the pad surface both cool and clean and reduce thermal distortion and warping. These same holes also prevent a film of water forming during wet conditions for improved braked response. And some feature a special venting technology helping to improve cooling capacity and increase resistance to cracking caused by thermal shock.
Discs with bearings
There’s no need to find your bearings with Delphi. That’s because these safety critical components are already pre-mounted in a range of discs, in order to ensure the correct pressing in of the bearing. They also include both toothed and magnetic ABS sensor rings, as per the OE, to ensure the correct operation of the ABS and other functions. And they come with the relevant fixing accessories too. All for quick and accurate installation.
One-piece cast iron discs
Our one-piece cast iron discs give the same standards of consistency, longevity and of course, braking performance as BMW’s patented two-piece bi-metallic composite disc, without infringing upon their design. But that’s not all! Delphi’s OE-matching discs are also fully coated, vented and high-carbon helping to reduce noise, vibrations and brake judder, whilst providing a long-lasting resistance to rust and a more aesthetic appearance. And to top it off, they come with fixing screws for quicker and easier fitting.