Cylindrical roller bearing

radialmulti-rowsteel

Multi row cylindrical roller bearings, also known as multiroll, are made up of two parts: inner ring (L) and outer assembly (R), which includes outer rings, cage and four rows of rollers. They are mainly used in rolling mill stands, where they are subjected to very high radial loads and impacts combined with medium-low speeds. RKB multiroll bearings are manufactured in different executions, to suit a wide range of applications and environments, above all in the harsh conditions of the steel and aluminium industry. Type AF2D/A2D Design used for small and medium size bearings One-piece ribless inner ring Two-piece outer ring with three integral ribs Double pronged high strength machined steel cage for increased stiffness and resistance to corrosive environments (AF2D) Annular groove and lubrication holes in outer ring Available with lubrication grooves in rings side faces Available with double pronged machined brass cage (A2D) Type GB2DX Designed for rolling mill stands with automatic roll changing device One-piece ribless inner ring with increased length of chamfers to facilitate mounting Two-piece outer ring with integral ribs Two-piece reinforced window type machined brass cage with integral rivets (AVH) for optimized roller drop Long-short roller arrangement for better load distribution and reduced edge stress Optimized for oil lubrication and automatic grease lubrication systems Type F2CII/EVO Design used for large size bearings Two-piece ribless inner ring with lubrication grooves in side faces Two-piece outer ring with separated side flanges and one central spacer