The ACT6NN Reich Arcusaflex Drive Coupler is a heavy-duty OEM coupling from the Reich ACT series. Size class 6 with standard “NN” keyway bores provides significant torque capacity for large portable compressors, industrial pump drives, and heavy diesel-driven equipment.
The ACT6 represents the upper end of the standard-duty Arcusaflex ACT range. At this size, the coupling handles torque loads from large diesel engines in portable compressors rated at 300+ CFM and similar heavy equipment. The elastomeric element at this scale provides substantial torsional damping, and element condition has a significant impact on drivetrain reliability for the entire machine.
Inspect the ACT6NN element at every scheduled maintenance interval. At this torque level, a worn element can transmit damaging forces to the engine and airend that result in expensive repairs. Replace proactively when any deterioration is visible. Follow the manufacturer’s alignment specifications precisely during installation.
Stark Industrial Products carries ACT6-class Arcusaflex couplers for heavy portable and industrial equipment.





















