Two Row Tapered roller bearings are very common as the back-up thrust bearing in a rolling mill or as the roll neck in lighter
duty rolling mills. Two row tapers are designed in a variety of styles for different applications. Converging bearings
(TDI,TDIE,TDIS) consist of one double cone and two single cups possibly with a cup spacer. Diverging bearings (TDO,TDOD,TDOC)
consist of two single cones, a cone spacer, and one double cup.