ATRA-FLEX A5-HUB-1.750 Hub

ATRA-FLEX A5-HUB-1.750 Hub is the A5-series hub component of the ATRA-FLEX flexible coupling family, engineered for a 1.750-inch bore. This hub is the shaft-side half of a two-piece coupling and is designed to pair with the matching ATRA-FLEX ring to form a complete flexible drive connection that helps accommodate minor shaft misalignment and cushion shock loads during operation. The A5 designation identifies the hub size within the ATRA-FLEX A-Series, which uses a common mounting interface across the family to simplify selection and replacement. The bore size of 1.750 inches defines the shaft diameter this hub is intended to fit, and the A-Series design provides a robust, shaft-mounted interface that supports reliable torque transmission when paired with the appropriate ring half and fasteners. For exact compatibility, use with the corresponding ATRA-FLEX A5-series ring and follow the manufacturer's installation guidelines to ensure proper clamping, alignment, and secure fastening.