This needle roller bearing carries a drawn cup with open ends, designed to DIN 618/ISO 3245. Outside diameter is 47.0 mm, width 20.0 mm, and net mass 49.698 g. The limiting speed is rated at 6600 1/min, with a reference speed of 4900 1/min. The bearing is supplied without sealing, exposing the needle rollers directly to the surrounding environment. The open-end design allows the shaft to pass through both sides of the cup, which is relevant where axial positioning or double-side loading is required. Without integrated sealing, protection of the rolling contact depends on external sealing measures or a suitably designed housing. The needle roller arrangement gives a thin radial section relative to the outside diameter, keeping radial space low while sustaining the stated speed ratings. Lubrication and shaft finish should be selected to match the unsealed configuration, since there is no built-in barrier against contamination.