Controlflex Coupling Hub w/Key, Double, Bore 0.875, OD 2.953, Alum
953" OD, and 0.Ruland supplied Controlflex couplings are a lightweight, low inertia, and zero-backlash coupling designed for use in encoders, tachometers, resolvers, and light duty power transmission applications. This Controlflex hub is RoHS and REACH compliant and manufactured by Schmidt Kupplung in Germany.709" length.