2015 New Cylindrical Roller Bearing Rolling Mill Roller Bearing Four rows cylindrical roller bearings have higher precision for their simple shape of rollers and raceways. They have smaller radial size, higher speed limit, higher dynamic rated load, and higher radial load ability. But they can’t take the axial load. Because of no inner rib, the inner ring and outer ring set, outer ring with rollers and cages, can be installed separately. For those frequently replaced rolls of cold rolling and hot rolling mill, these bearings have the advantages of high radial load ability, high rotation accuracy, and easy installation. Therefore, they are the first choice for all kinds of rolling mill.