Four row tapered roller bearings, the performance of this kind of bearings and double row tapered roller bearings are basically the same, but more than double row tapered roller bearings under the radial load is greater, the limit speed is slightly lower, mainly used for heavy machinery.
Four-row bearings provide maximum capacity in minimum space, combining the inherent high-load, radial/thrust capacity and direct/indirect mounting variables of tapered roller bearings.
Their main application is on the roll necks of rolling mill equipment. All four-row bearings are supplied as pre-set matched assemblies with all components identified to ensure correct installation sequence.