Controlflex Coupling Hub w/Key, Double, Bore 1.125, OD 2.953, Alum
It is longer than equivalent single insert Controlflex types to couple systems with wide distances between shaft ends It has a balanced design and can accommodate speeds of up to 7500 RPM. The multiple piece construction allows for a highly customizable coupling that easily combines clamp hubs with inch, metric, keyed, and keyless bores. This hub has a 1.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.