WEATHER PROOF ANTENNA TOWER BEARING ASSEMBLY

摘要

WEATHER PROOF ANTENNA TOWER BEARING ASSEMBLY A bearing assembly for a radio tower of the type having a plurality of vertical legs and a central freely rotatable vertical shaft having an antenna at the upper end. The bearing assembly comprises a tubular housing through which the antenna shaft extends. This includes thrust and radial bearings at upper and lower ends of the tubular housing. A plate is fixed to the upper end of the tubular housing and stub shafts at corners of the plate engage the top ends of the legs. The upper bearing is located within an upwardly-open cylindrical case at the center of the plate and the top of the tubular housing, and a rubberlike boot encloses the rotatable shaft and case to provide a weather-proof seal for the upper bearing. The housing is supported further by sideward arms extending radially from a lower position thereof for bearing against sides of the legs. The upper and lower bearing means are separated by a distance which is several times the diameter of the rotatable shaft.