The SKF 2209KC3 is a genuine self-aligning ball bearing featuring a two-row design and a tapered bore (K) for mounting with adapter sleeves. It is engineered to accommodate static and dynamic angular misalignment, making it suitable for applications where shaft deflection or mounting errors are present. This bearing includes C3 radial internal clearance, indicating a clearance greater than normal, which is often preferred for applications involving thermal expansion or heavy loads. Key dimensions include a bore diameter of 45 mm, an outer diameter of 85 mm, and a width of 23 mm.