Mobility Solutions

Lighter, more comfortable, and fuel saving New Bosch ZOHe brake caliper Broad portfolio for front and rear axle

  • New brake caliper with reduced residual braking torque
  • Longer service life of brake pads and less noise and vibration
  • Five percent lighter than predecessor
  • Variants for front and rear axle, and for passenger cars and light commercial vehicles
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  • September 13, 2011
  • Mobility Solutions
  • Press releases

press release

In 2012, Bosch will be launching an improved variant of its tried and true ZOH brake caliper. In the new ZOHe (zero offset harmonized evolution) generation, engineers have further improved the rigidity of the caliper and the guidance (system) for the brake pads and housing. As these are especially accurate and smooth-running, the caliper assumes an optimally symmetric position when the brakes are released. This has two advantages: first, clearance is kept very low, which improves pedal feel. Second, residual braking torque is reduced, which in its turn lessens driving resistance and reduces brake-pad wear. Not least, there is less noise and vibration. In its gray iron variant, the new floating caliper model is already 5 percent lighter than the current generation. The aluminum variant is a further 7 percent lighter.

The new ZOHe generation is suitable for installation on the front or rear axle. It comes in variants with one or two pistons, which cover all vehicle classes from small passenger cars to light trucks. For the rear axle, Bosch offers a variant with an electric motor mounted directly on the caliper. This motor performs a parking brake function. An alternative cable solution is still available for applying the parking brake by hand or with the help of an electric motor.

High-performance simulation tools were used in the development of the new brake caliper. These tools allowed engineers to reduce the caliper’s weight while at the same time increasing its rigidity. This is a key factor in brake performance and pedal feel.

Apart from brake calipers, the Bosch Chassis Systems Brakes division also supplies brake discs and drum brakes, as well as brake boosters and tandem master brake cylinders.

Click here to find further information.

Mobility Solutions is the largest Bosch Group business sector. In 2015, its sales came to 41.7 billion euros, or 59 percent of total group sales. This makes the Bosch Group one of the leading automotive suppliers. The Mobility Solutions business sector combines the group’s expertise in three mobility domains – automation, electrification, and connectivity – and offers its customers integrated mobility solutions. Its main areas of activity are injection technology and powertrain peripherals for internal-combustion engines, diverse solutions for powertrain electrification, vehicle safety systems, driver-assistance and automated functions, technology for user-friendly infotainment as well as vehicle-to-vehicle and vehicle-to-infrastructure communication, repair-shop concepts, and technology and services for the automotive aftermarket. Bosch is synonymous with important automotive innovations, such as electronic engine management, the ESP anti-skid system, and common-rail diesel technology.

The Bosch Group is a leading global supplier of technology and services. It employs roughly 375,000 associates worldwide (as of December 31, 2015). The company generated sales of 70.6 billion euros in 2015. Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its roughly 440 subsidiaries and regional companies in some 60 countries. Including sales and service partners, Bosch’s global manufacturing and sales network covers some 150 countries. The basis for the company’s future growth is its innovative strength. Bosch employs 55,800 associates in research and development at 118 locations across the globe. The Bosch Group’s strategic objective is to deliver innovations for a connected life. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.”

Further information is available online at and,

PI7490 - September 13, 2011

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