The HFH 2217K is a high-quality self-aligning ball bearing, engineered to accommodate angular misalignment between the shaft and housing. This type of bearing features two rows of balls and a common spherical raceway in the outer ring, allowing for angular movement. It is suitable for applications where there is potential for shaft deflection or mounting errors. The 'K' designation typically indicates a tapered bore, designed for mounting with an adapter sleeve on a cylindrical shaft.