Rexnord Omega 20 HSB is a stainless-steel hub with a 1.8750 in bore and a KW 1 keyway, designed for robust power-transmission assemblies. The SS hub construction provides corrosion resistance while delivering a precise shaft interface for reliable torque transfer. This hub functions as the mounting element in a shaft-to-coupling arrangement, enabling secure engagement with a mating component. Key specifications—bore size (1.8750 in), keyway (KW 1), and stainless-steel hub construction—define compatibility with matching Omega 20 components and standard shaft diameters that accommodate the 1.8750 in bore.
