Ewellix has developed and manufactured a planetary roller screw that recently landed on Mars as part of NASA’s Mars 2020 Perseverance Rover Mission
Ewellix engineers worked in collaboration with NASA’s Jet Propulsion Laboratory (JPL) at the California Institute of Technology to develop the roller screw component.
Ewellix’s planetary roller screw is housed inside the sealing station on the base of the Perseverance Rover and will generate the high force required to hermetically seal the 43 sample tubes on board.
It was critical to save mass on the Rover and Ewellix’s roller screw provided a tremendous amount of force load in a small mechanism, making it an ideal rover component for load rating and weight. Other benefits are long service life by design, high reliability and the ability to withstand frequent changes of loading direction, high linear speed and some amount of contamination.