Opening a roof to the stars Manoeuvring the roof above the world’s largest optical telescope Gran Telescopio Canarias. When the world’s largest optical telescope, Gran Telescopio Canarias (GTC), entered its first phase of operation in July 2007 it was the culmination of many years of collaborative work. Several Spanish and Mexican institutions, University of Florida and numerous design and engineering companies were involved in its design and construction, including Rexnord Kette. Costing more than €30 million and using the latest precision technology, the La Palma based GTC is designed to enable scientists from around the world to observe and analyse the universe from the island’s highest point (Roque de los Muchachos, 2426m). Every consideration has therefore been made to ensure as near perfect performance as possible to achieve uninterrupted operation, whilst providing the highest quality images at all times. Central to achieving these goals is a smooth drive system for manoeuvring the roof above the telescope both vertically and horizontally, without vibration, to permit the accurate functioning of the entire system. This is where Rexnord chains are employed. For this project four stands of Laschenkette 64-1 with a pitch of 63.5mm and four stands of Laschenkette 50-1 with a pitch of 50.8mm were supplied by the distributor Tansmisioines de Potencia S. L. Both sets of chain were matched as groups to provide combined balanced maximum chain pulls of 420,000N and 210,000N, respectively. The new GTC further improves upon the design of other telescopes built in the past. The use of adaptive optics technology means that flexible mirrors on the telescope aid in correcting light abnormalities and in preventing any deformations of the image that is conveyed to the observer. The superior mechanics of the telescope allow it to move both vertically and horizontally, while remaining free from vibrations that might affect image quality. The telescope is expected to be fully operational by the summer of 2008. Speed Link InfoService Request more information by e-mail Reader Service No. Reader Number Email Address 01112    Tell a friend about this article:
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