The 120 mm oversized cast iron sleeve bearing designed for bearing numbers 6213 and 6311 features an approximate outer diameter of 126 mm with a tolerance of ±0.05 mm and a sleeve length of 70 mm. This sleeve bearing is engineered for compatibility with deep groove ball bearings sized 65 mm inner diameter, 120 mm outer diameter, and 23 mm width, supporting high rotational speeds up to 12,000 rpm and dynamic loads with a basic dynamic load rating around 58.5 kN. The cast iron construction ensures durability and wear resistance, making it suitable for heavy-duty industrial applications requiring precise fit and reliable performance.