Abstract: The invention relates to a system for the continuous lubrication of a rolling bearing. The rolling bearing is arranged in a bearing bore provided at a bearing bracket. The lubrication system comprises a reservoir containing a supply of lubricating oil, from which at least one wick leads to the bearing, the lubricating oil being suppliable to the bearing by the wick. To obtain as long as possible a continued lubrication period with as small as possible a supply of lubricating oil, one or more oilproof cavities are provided as lubricating oil reservoir in a separate bearing cover attachable to the bearing bracket. Such a bearing cover can be postfitted in machines to increase the period of continued lubrication.

Abstract: The invention relates to an axial fan with blades that automatically adjust to the direction of rotation. The fan blades are mounted with freedom to swivel on the fan wheel and are limited in their swiveling motion by stops which are provided on the fan wheel. In order to reduce the manufacturing cost of such an axial fan, spokes, to which the fan blades are fastened by means of film hinges are mounted on the fan wheel. The fan wheel is made from a single piece of plastic.