The NEW Zero-Max P 2156001 1/4 x 5/16 Inch Single Disc Control Flex Coupling is a high-quality hub coupling designed for industrial automation and motion control systems. Made by the trusted brand Zero-Max in the United States, this flex coupling allows for smooth and precise transmission of mechanical power. With its compact size and specific 1/4 x 5/16 inch dimensions, this coupling is ideal for a variety of mechanical applications requiring flexible power transmission.