Many manufacturers declare their products to be “maintenance-free”. This usually means that the bearing in question is delivered with initial lubrication. As long as this lubrication is intact, no maintenance of any kind is necessary. iglidur plastics, in contrast, do not have a lubricating film and no reservoir of grease that is eventually used up. The homogeneous structure of the plain bearing material ensures that wear is mostly linear, without any surprises or maintenance intervals that have to be adhered to.