NBC produces Four Row Cylindrical roller bearings in different designs and arrangements depending on the requirement of the application.

The variations are based on number of inner and outer rings, number of loose or integral flanges on the outer ring/ inner ring and type of cage design.

Four Row Cylindrical roller bearings are mainly used in the necks of rolling machine rollers – they are designed for maximum rated load to accommodate the severely limited space in the roller neck section of such equipment. In the event of a requirement where the bearings are mounted with a loose fit on the roll neck, the bearings are made with helical grooves in the bore or lubrication grooves in the side faces of the bearing rings so that the mating surfaces are efficiently lubricated.