The 42 mm insulated cast iron sleeve bearing designed for use with 6004 and 6302 bearings features an outer diameter of approximately 45 mm with a tolerance of ±0.05 mm and a sleeve length of 20 mm. It is constructed from durable cast iron with insulation properties, providing reliable support and reducing electrical conductivity in rotating assemblies. Compatible with deep groove ball bearings such as the 6004 (20x42x12 mm) and 6302 (15x42x13 mm), these sleeve bearings ensure stable operation under radial loads and high-speed conditions, making them suitable for industrial and mechanical applications requiring precise fit and electrical isolation.