The invention relates to a sealing ring with a sealing region and a guiding region, the sealing ring comprising a flexible core and a sheathing which surrounds the core completely on all sides, and the sheathing, which expediently takes the form of a fluoroplastic such as for example polytetrafluoroethylene, having a sealing region and a guiding region which merge seamlessly with each other or are firmly bonded to each other.
