Steel shaft sleeve bearings designed for use with 6003, 6203, and 6303 deep groove ball bearings feature a 16 mm bore diameter and a 25 mm sleeve length, providing reliable support for rotating shafts in various electrical and mechanical applications. These precision sleeves are engineered for smooth operation, with options for undersized bores at 15 mm and 14 mm to accommodate specific fit requirements. Constructed from high-quality steel, they offer excellent durability and resistance to wear, ensuring stable performance in demanding environments. Ideal for motors, fans, and industrial equipment, these sleeves enhance bearing alignment and longevity without adding bulk or complexity to the assembly.