Around one third of the particulate emissions in road traffic is attributable to brakes and tires – and nearly half of this amount to brake dust. But a solution is on its way: with the innovative iDisc brake disc, Bruderus Guss is helping to improve air quality in cities. The secret behind this success lies in the iDisc’s hard tungsten carbide coating. This coating not only reduces brake dust, it also increases safety – especially when several braking maneuvers are performed in succession. The iDisc is extremely robust and has almost the same braking power as a comparable ceramic product that comes at a much higher cost. In terms of price, the iDisc is roughly three times more expensive than a normal cast iron brake disc, and three times less expensive than a ceramic brake disc. The price is likely to continue falling as production volume increases.
It is also much more resistant to wear. Depending on the coating thickness, the iDisc lasts twice as long as a normal brake disc. In addition, it is less prone to scoring and corrosion. The latter is a major advantage, especially for electric vehicles. Because they have the ability to recuperate braking energy, they put less strain on the brake. For this reason, when conventional brake discs are used a film of rust forms repeatedly on the friction rings. This temporarily leads to a slightly poorer response when braking, which does not occur with the iDisc.
Member of the board of management, Robert Bosch GmbH
The iDisc will also delight wheel rim fans. Not only because its polished hard alloy coating makes it a real eye-catcher. Being extremely low-wear and corrosion-free, it retains its lustrous looks even after several years – reflecting the trend for open-design wheel rims.
But best of all: thanks to the 90-percent reduction in brake dust produced by the iDisc, regular cleaning of the wheel rims – which often required highly aggressive cleaning agents – is a now thing of the past. Protecting the environment can also have very practical benefits.