Four-row cylindrical roller bearing Four-row cylindrical roller bearings (also called rolling mill bearing）are almost exclusive to metals industry and carry heavy radial loads in steel, aluminum and other metal rolling mills. Four-row cylindrical roller bearings have an extremely high radial load capacity, but no thrust capacity. This bearing type is mostly used in roll neck and work roll applications in the metal rolling industry. GWG Bearing has the regular order of cylindrical roller bearings, which are featured by high precision, low noise and long life time. Exquisite techniques, many ready goods of any size and urgent need can be satisfied.