Bearing cartridge assembly

A bearing for conveyor rolls or the like adapted to fit within a conveyor roll shell comprising coaxial inner and outer bearing elements spaced apart to provide a bearing cavity between their bearing surfaces, a fluid lubricant containing particles of magnetizable material disposed in the bearing cavity, and permanent magnet lubricating means disposed adjacent the bearing elements but separate therefrom and outside the bearing cavity to establish flux paths between the bearing elements and across the bearing cavity so as to distribute the lubricant uniformly over the bearing surfaces within the bearing cavity by magnetic attraction of the lubricant.