Spoked front wheel hub for Delta and Fermer. The spokes and bearings are mounted in it, and it rotates together with the wheel on the axle.
Replace it if the flanges are deformed, if there are cracks or worn spoke holes. Check the bearings and the axle, and true the wheel after installation. After installation, check that the shaft rotates without binding and without noticeable play. When buying, compare the markings on the old bearing: they define the size unambiguously.
