UNIMAC universal couplings, also known as universal joints, are flexible mechanical connectors designed to transmit torque between two misaligned shafts at variable angles. Universal Shaft Couplings are flexible mechanical connectors with a center ball joint designed to transmit torque between misaligned shafts, allowing smooth rotation across varying angles. Cardon Shaft couplings consist of a pair of hinges connected by a cross-shaped pivot, allowing smooth rotation even when the shafts are not perfectly aligned.