The SKF 308ZNR is a genuine single row deep groove ball bearing designed for robust performance. It features a 40 mm bore, 90 mm outer diameter, and 23 mm width. The 'Z' suffix indicates a metal shield on one side, providing protection against contaminants, while the 'NR' suffix denotes a snap ring groove on the outer ring, facilitating axial location in a housing. This versatile bearing is suitable for a wide range of industrial and agricultural machinery applications requiring reliable rotation and load support.