Rollerscrews combine a ground screw and the nut, which is equipped with rollers. The geometry of the thread and the rollers, as the circulating elements, make rollerscrews special and provide the following advantages
Advantages
High axial load capacity by the use of thread-rollers and the resulting contact areas, as well as the amount of contact points
High speed, high acceleration
High axial rigidity
High positioning-accuracies and repeatabilities with short strokes
