Orion Fans’ sealed sleeve fans provide a significantly less expensive alternative to ball-bearing fans at a comparable life expectancy, while greatly exceeding the life expectancy of standard sleeve-bearing fans. This is accomplished through Orion Fans’ unique technology, in which sealed sleeve-bearing systems retain lubricant by using metal foils that serve as a guard to redirect and recycle the lubricant. Standard sleeve-bearing fans lose lubricant to evaporation and gravity when mounted horizontally thus shortening the life span.