The Rexnord 3701683 hub is a member of Rexnord’s 50R hub lineup, designed as a mounting hub for mechanical power transmission assemblies. Identified by part number 3701683, it serves as a central mounting point to attach components such as sprockets, pulleys, or couplings to a shaft in compatible Rexnord installations. This hub reflects the 50R family’s design lineage, helping buyers match part numbers within Rexnord’s hub offerings for reliable replacements or upgrades.
