This needle roller bearing carries a solid inner ring combined with a needle roller and cage assembly, giving it a high radial load capacity within a compact cross-section. Bore diameter is 50.0 mm, outside diameter 72.0 mm, and net mass is 286.1 g. The design belongs to dimension series 49. Sealing is provided by lip seals fitted on both sides (2RSR), retaining lubricant inside the bearing and keeping contaminants out. The double-sided lip sealing allows operation without additional external sealing arrangements and supports grease lubrication over extended service intervals. The full complement of needle rollers under the solid inner ring provides rigid radial guidance suitable for applications requiring high load capacity within limited radial space. As with all NA49 series bearings, axial location and a mating shaft with adequate hardness and tolerance are required, since this design carries radial loads only.