1. Product Overview 535191/574613 is TQO structure four row tapered roller bearing, widely used for metallurgical rolling mill roll neck. Complete set consists of two double cones, one double outer cup, single outer cup plus inner & outer spacer components. It can withstand extremely heavy combined radial load and bidirectional axial load simultaneously. Built-in spacer with lubrication through-holes, ensures uniform lubricant distribution between roller rows. Strict serial