After extensive tests, FKN decided to use iglidur G plain bearings, 7,300 of which were installed in the 63 service centre facade support posts. Originally developed for mechanical and plant engineering, these plain bearings made of high-performance polymers also offer considerable structural engineering advantages, including in facade construction. They are lubricant-free, and therefore almost maintenance-free, and resistant to dirt and corrosion. Constant coefficients of friction are maintained in long-term use, even under high loads. And in addition to the technical advantages, plastic plain bearings are economically attractive: Polymer plain bearings cost much less than commercially available metal-rolled bearings. The iglidur product range includes a broad spectrum of plastic compounds, so that a material can be selected for the precise application in question. iglidur G was used for FKN's facade drives. The economic all-rounder bearing was very well suited for pivoting and rotary movements at low to medium speeds, even under extremely high loads and adverse environmental conditions – just the application profile for which the FKN project developers needed a solution. Since installation, the iglidur plain bearings have provided trouble-free, safe, reliable outer facade movement. Incidentally, iglidur G can be delivered from stock in a large number of dimensions and is available at all times.