Lucas Automotive Gmbh

Zf Active Safety Gmbh

Boris Kuhnert

Michael Schog

Peter Stahl

Maria Heinemann

Nong Dang

Christian Damrau

Christian Tharr

Dietrich Podzuweit

Martin Brandt

A disc brake for a motor vehicle, wherein it is possible to displace the actuating piston in the housing both by hydraulic pressure activation of a hydraulic chamber formed in the housing and via a mechanical actuator, wherein the sealing ring is accommodated in an annular groove formed in the housing. Provision is made here for the annular groove to have a groove floor, which runs substantially parallel to the longitudinal axis of the piston, and two groove walls, which adjoin the groove floor, wherein&#x2014;as seen in the direction of the longitudinal axis of the piston&#x2014;a first groove wall is directed away from the hydraulic chamber and a second groove wall is directed towards the hydraulic chamber, wherein the first groove wall merges into the groove floor via a rounded or bevelled transition region at a varying distance from the longitudinal axis of the piston.

Disc brake for a motor vehicle, having a sealing arrangement designed for an electronic parking brake

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Lahnstein, Germany

Boris Kuhnert