Industrial A3-HUB-RSB NSMD Industrial Networking Hub Module

ATRA-FLEX A3-HUB-RSB is a Rough Stock Bore (RSB) jaw coupling hub from the A-Series family, designed as a standard hub for ATRA-FLEX jaw coupling systems. The RSB designation indicates a rough bore variant intended to be machined to a precise shaft diameter during assembly, ensuring a secure fit in drive trains. As a hub, it interfaces with the mating jaw-coupling halves to form a complete coupling assembly for industrial machinery, enabling shaft-to-shaft connection in power transmission applications. This part belongs to the A-Series standard hubs and should be paired with matching ATRA-FLEX coupling components of the same size to ensure proper alignment and torque transmission. When selecting an A3 size, verify your shaft bore and mounting dimensions to match the hub with the corresponding coupling halves and secure attachment hardware as specified by the manufacturer.