The Design of Rolling Bearing Mountings

122–124 RadiotelescopeFor radioastronomy highly sensitive radiotelescopes areused for picking up radio waves from the universe.The radiotelescope antenna is a huge reflector in theform of a paraboloid. The reflector is slewable aboutan axis parallel to the earth surface, the elevation axis.The whole telescope slews about the vertical axis, theazimuth axis.Operating dataTotal mass of the radiotelescope 3,000 tons (loadapproximately 30,000 kN); reflector diameter 100 m,reflector mass 1,600 tons (load approximately16,000 kN); speed of track rollers n max = 8 min –1 ,n min = 0.01 min –1 ; track diameter 64 m.A ReflectorB Azimuth axisC Elevation axisD King pin bearingE Travelling gear (track rollers)F Data wheelFAG 174