This cylindrical roller bearing carries a full complement of rollers arranged in two rows, with a bore diameter of 45.0 mm, outside diameter of 75.0 mm and width of 23.0 mm. The outer ring has one rib and the inner ring has three ribs, giving the bearing a semi-locating function within the shaft assembly. Net mass is 410.0 g, limiting speed reaches 6600.0 1/min and reference speed is 4200.0 1/min, with radial internal clearance in group CN (Group N). The full complement roller set increases radial load capacity per unit volume compared to cage-guided designs, while the semi-locating arrangement allows the bearing to accommodate limited axial displacement in one direction. The rib configuration on inner and outer rings guides the two rows of rollers and keeps them axially located within the bearing itself. Standard CN clearance suits general mounting conditions without preload, and the bearing is supplied without integrated sealing, requiring external sealing and a defined lubrication method suited to the operating speed.