Conventional trolleys, as used in logistics or gastronomy for example, often run unevenly and do not go straight. The newly developed 4-wheel Ackermann steering improves track accuracy and handling. The igus® plain bearings used made of iglidur® G and the igubal® rod end bearings not only reduce the manufacturing costs. They are also completely maintenance-free. Types of dirt, which cannot be kept out during daily use, are unable to stick due to the lack of lubricant.