Insulated cast iron sleeve bearings are precision-engineered for reliable performance in demanding electrical applications. The 225 mm insulated cast iron sleeve is designed for use with bearings 6030 and 6321, featuring an approximate outer diameter of 232.3 mm (9.146 inches) and available in lengths from 60 mm to 100 mm. These sleeves provide excellent electrical insulation to prevent current passage, reducing the risk of bearing fluting and pitting. The cast iron construction ensures durability and heat resistance, while the insulated design supports safe operation in environments where electrical isolation is critical.