The 120 mm cast iron sleeve bearing designed for 6213 and 6311 bearings features an outer diameter of approximately 126 mm with a tolerance of ±0.05 mm and a sleeve length of 70 mm. It is engineered for compatibility with deep groove ball bearings such as the 6213, which has dimensions of 65 mm inner diameter, 120 mm outer diameter, and 23 mm width. These bearings support high rotational speeds up to 12,000 rpm (reference speed) and dynamic loads with a basic dynamic load rating around 58.5 kN. The sleeve bearing’s robust cast iron construction ensures durability and precise fit for industrial applications requiring reliable radial load support.