The 300 mm oversized cast iron sleeve bearing designed for bearing number 6328 features an outer diameter of approximately 309 mm (12.165 inches) with a tolerance of ±0.05 mm and a sleeve length of 120 mm. This sleeve bearing is engineered for compatibility with 6328 deep groove ball bearings, which typically have an inner diameter of 140 mm, an outer diameter of 300 mm, and a width of 62 mm. The sleeve’s robust cast iron construction ensures durability and reliable performance in heavy-duty industrial applications, providing precise fitment and support for large rotating shafts. It is ideal for use in conjunction with high-capacity bearings requiring stable housing components.