The 420 mm cast iron sleeve bearing, compatible with bearing numbers 6056 and 6340, features an approximate outer diameter of 431 mm (16.969 inches) with a tolerance of ±0.05 mm and a sleeve length of 120 mm. Made from durable cast iron, this oversized sleeve bearing is designed for heavy-duty applications requiring precise fit and high load capacity. An insulated variant offers a slightly smaller outer diameter of 430.3 mm (16.941 inches) with the same length, providing electrical insulation properties. These sleeves ensure reliable performance in industrial machinery by supporting shaft rotation and reducing wear. No capacitance or voltage ratings apply as these are mechanical components.