The SKF 311NR is a high-quality single row deep groove ball bearing, featuring a 55mm bore diameter, 120mm outer diameter, and 29mm width. The 'NR' suffix indicates that the outer ring has a snap ring groove and is supplied with a snap ring, facilitating axial location in the housing. This genuine SKF bearing offers a basic dynamic load rating of 80 kN and a static load rating of 47.5 kN, designed for reliable performance in various industrial and agricultural machinery.