Innovative energy supply systems, for example, for the concatenation and supply of linear robots, handling robots and automotive manufacturing facilities. The knowledge gained from igus® research in the area of plain bearings has been incorporated into the completely revised P4.1 rol e-chain®. Tribologically optimised pin/bore connections can more than double the service life. As an option, these bearing points can be made "smart" so that maintenance requirements can be predictable. With its gantry trough and its pull-chain system, igus® is exploring completely new directions and concepts. A high degree of safety thanks to completely enclosed and space-saving energy supply systems that are subjected to little or no push-pull forces. They can therefore be suitable for very long travels.