Provided is an apparatus for handling containers. The apparatus comprises a moveable carrier, a plurality of treatment stations arranged on the moveable carrier for treating the containers, each treatment station having at least one element that is moveable in relation to the carrier, and a stationary guide curve. The elements are temporarily coupled to the guide curve. A movement between a treatment station of the plurality of treatment stations and the guide curve translates to a movement of the at least one element. A coupling device comprises at least one guide roller which at least temporarily contacts the guide curve. At least one of the guide roller or the guide curve includes an imidized polymer material.