Transmits axial load in one direction only, built as a deep groove ball bearing with two washers and a ball-and-cage assembly in between, cage code JP made of steel sheet metal. Height of the bearing is 18.0 mm, net mass 220.0 g. Limiting speed is rated at 6000 1/min, reference speed at 8000 1/min. Being a single-direction axial design, it carries thrust load from one side and requires a counterpart to handle load from the opposite direction or must be combined with a radial bearing to locate the shaft. The steel sheet metal cage keeps mass low and suits the stated speed limits; correct axial preload and alignment of the two washers on assembly are needed to avoid uneven ball loading. Dimensionally and constructionally interchangeable with SKF 51207, NSK 51207, NTN 51207.