iDisc brake disc

Less brake dust: iDisc
helps alleviate particulate-emission
problem in cities

Benefits of iDisc

  • Thanks to its hard tungsten carbide coating, the iDisc reduces brake wear and abrasion, cutting particulate emissions as a result.

  • The iDisc ensures stable deceleration even with a rapid succession of braking maneuvers.

  • Thanks to its coating, the brake disc is extremely durable and particularly resistant to wear.

  • The coating prevents dirty wheel rims and captivates with its long-lasting shiny surface.

  • From electric cars to commercial vehicles – the iDisc is suitable for all vehicle types.

Brake disc 2.0

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.


of particulate emissions in road traffic is attributable to brakes and tires, and nearly half of this amount to brake dust

(Source: State Office for the Environment, Measurements and Nature Conservation in Baden-Württemberg, Germany)


less brake dust is produced by the iDisc compared with a conventional brake disc

“We want to achieve the least possible or even zero air pollution caused by traffic.”

Dr. Volkmar Denner

Dr. Volkmar Denner

Chairman of the Board of Management at Robert Bosch GmbH

Lustrous looks and environmental benefits

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.

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