Eichenberger ball screws from Moore International offer an efficient way of converting rotary to linear motion thanks to their reliability, precision and efficiency compared to more traditional power transmission components such as belt or chain drives.
Ball screws also offer a much higher lifetime and efficiency over acme / trapezoidal threads where long hours and frequent use are needed and high loads. The main reason behind a ball screw's efficiency is the ball bearings running on the cold rolled thread thus taking away the friction between the screw and nut which holds the balls and allows them to recirculate this then allows for a more predictable lifetime, provided that all the parameters have been taken into consideration.