This needle roller bearing carries a single row of needle rollers running against a particularly thick-walled outer ring with an outside diameter of 16.0 mm and a net mass of 8.15 g. The design has no inner ring, so the needle rollers run directly on the shaft, and the outer ring has no axial guidance, meaning axial location must be provided by the surrounding construction. The cage is executed as TV, and the bearing is supplied open, without sealing. Because the inner ring, outer ring and needle roller and cage assembly can be mounted separately, the bearing allows flexible fitting sequences where the shaft acts as the raceway. The absence of sealing means the mounting environment must supply protection from contamination, and lubrication must be applied and maintained externally since no seal retains grease or oil within the bearing. The thick-walled outer ring gives the track roller its load-carrying rim while the open design keeps the radial section compact for the given outside diameter.