Machines and machine components for conveyors, namely, roller elements for conveyors, rolling conveyor belts and chain conveyor belts, namely, deflection elements and deflection devices for conveyors, chain conveyor belts, namely, guiding devices for rollers in roller elements, namely, roller elements for mechanical storing, conveying and deflection of moved objects or objects to be moved; drives for conveyor installations with roller elements; all the aforementioned goods being for the trans...