Posted to News on 25th Aug 2009, 21:47
Ball screw jacks are key to radio telescope dish accuracy
Power jacks supplied ten 50kN metric ball screw jacks in a translating screw configuration to the Cavendish Laboratory, Cambridge, to drive the elevation on twin-array radio telescope antenna dishes and achieve the required pointing accuracy of better than half a minute of arc.
The jacks are mounted on a special trunnion base and the ball screw - which has a stroke of 1050mm - is protected from the elements by a bellows boot. A safety stop nut protects the screw jack from accidental overtravel.
Follow the link to read about this application story and find out how Power Jacks addressed the various challenges presented by the project.
Alternatively, go directly to the Power Jacks website for more information about metric ball screw jacks.
