The Anderson keyless hubs are an advanced design concept in shaft connections and are quickly becoming the new standard in shaft mounting. Its patented technology allows users to carry high torques without any keys or tapers. Where torsionally soft couplings are required, Coupling Corporation designs quill shaft couplings with flexible diaphragms and which virtually eliminate vibration problems. Recently, the Coupling Corporation moved it manufacturing plant into a new 60,000 square foot building in Jacobus, PA. where a trained and competent staff continues to build shaft couplings and keyless hubs which are balanced and torque tested before shipping.