The 125 mm insulated cast iron sleeve bearing for bearing sizes 6016 and 6214 features an approximate outer diameter of 130.3 mm (5.130") with a tolerance of ±0.05 mm (0.002"). Sleeve lengths are available in 40 mm, 50 mm, 60 mm, or 70 mm to suit various applications. The sleeve is made from durable cast iron with an insulating layer to prevent electrical current passage, protecting bearings from eddy current damage such as fluting and pitting. This insulation makes it ideal for use in electric motors where bearing protection against electrical discharge is critical. The precise dimensions ensure a secure fit and reliable performance in heavy-duty industrial environments.