The 120 mm insulated steel sleeve bearing, compatible with bearing numbers 6213 and 6311, is engineered for robust electrical insulation and mechanical support in demanding applications. This precision-machined sleeve features an approximate outer diameter of 126 mm (±0.05 mm) and a length of 70 mm, ensuring a secure fit for standard 120 mm OD bearings. Constructed from high-grade steel with an insulating layer, it effectively prevents electrical current passage, protecting equipment from stray currents and bearing damage. Ideal for motors, generators, and industrial machinery, this sleeve offers enhanced durability, reliable insulation, and easy installation, making it a critical component for extending bearing life in electrically active environments.