The ACT5ST Reich Arcusaflex Drive Coupler is an OEM coupling from the Reich ACT series, size class 5 with taper-lock hubs. This coupling provides secure shaft connections with high clamping force for mid-range to heavy portable compressors and industrial drives.
ACT5 taper-lock couplers are specified in equipment where the torque demands and operating conditions favor the taper-lock interface over conventional keyway bores. The taper-lock provides better concentricity and eliminates keyway stress concentration, extending shaft life in high-cycle applications.
Follow the manufacturer’s specific torque sequence for taper-lock hub installation. Do not reuse worn components. Verify alignment after both hubs are installed.
Stark Industrial Products stocks ACT5 taper-lock Arcusaflex couplers for industrial and compressor applications.













