SKF Four-Row tapered roller bearings are also named Rolling mill bearings for large mining arrangements, SKF manufactures an extensive range of four-row tapered roller bearings, not only the common design with intermediate rings between the outer and/ or inner rings, but also a new design with modified rings which integrate the intermediate rings, such as the types of TQON,TQON.1,TQO.1,TQOEN,TQOE,TQOT,TQOSN,TQOS,TQOSN.1,TQOESN,TQOES design and so on.
SKF Bearings with TQO design are double row inner rings with roller and cage assemblies. Steel window-type cages. One double row outer ring and two single row outer rings. Two intermediate rings between the outer rings and one between the inner rings.
