Industrial Atra-Flex M4 Hub BB Q1 Millenium Flexible Coupling

Industrial Atra-Flex M4 Hub BB Q1 Millenium Flexible Coupling is a shaft-to-shaft connector used in industrial drive trains to transmit torque while accommodating small misalignments. The unit features a 70 mm inner diameter (ID), which corresponds to the bore size that mates to a compatible shaft, and a 162.5 mm outer diameter (OD), defining its overall envelope within the assembly. This model uses an M4 Hub configuration and carries the BB Q1 Millenium designation within the Atra-Flex product family, identifying its specific hub style and version in the line. As a flexible coupling, it provides a compliant connection between rotating components, aiding in the management of vibration and shock transmission in power transmission systems. The stated bore and envelope dimensions should be matched to the corresponding shaft and mounting hardware to ensure proper fit, alignment, and secure assembly. This description reflects the available product details and design intent for this particular Atra-Flex iteration, allowing engineers to determine compatibility with their drive arrangement based on bore size, hub configuration, and the Millenium lineage.