The utility model provides a self-carding vortex roller bed. The self-carding vortex roller bed comprises a rotary shaft and a roller mounted on the rotary shaft. The self-carding vortex roller is characterized in that two sides of the roller are connected with a group of helical blades respectively via rings, the rings are mounted on the rotary shaft, and the helical blades on two sides are reverse in the helix direction. The self-carding vortex roller bed adopts the vortex rotation isolation and rejection manner and is combined with centrifugal force, so that the problem that cooling water enters a bearing block cavity of the roller bed along gaps and causes emulsifying failure of lubricating oil and increase of friction resistance of a bearing is solved, rotation accuracy of a rolling bearing is effectively improved, service life of the bearing is prolonged, and normal running of the roller bed is guaranteed.