ARCUSAFLEX Highly Flexible Coupling

The ARCUSAFLEX® (AC) coupling from REICH is a highly torsionally flexible flange coupling with axial plug-in facility, providing a torsionally soft connection between an internal combustion engine and a driven machine. A disc-shaped rubber element absorbs high torsional vibrations and compensates major misalignments.

Key features

• Very high torsional flexibility with linear torsional deflection characteristic
• High torsional vibration and shock load absorption
• Cam gearing on the rubber element and flange for almost backlash-free positive torque transmission
• Axial plug-in with large axial float; elastomer teeth may slip under overload
• Element versions with different dynamic torsional stiffnesses for tuning the torsional vibration range

Technical data

• Torque range: 210 Nm to 72,000 Nm
• Flange dimensions mainly to SAE J 620 and DIN 6281
• Rubber compounds: natural/synthetic standard up to 80 °C; heat-resistant mixes up to 100 °C / 120 °C; silicone up to 130 °C
• ATEX certified to Directive 2014/34/EU (categories M2, 2 + 3)
• Type approvals from several leading classification societies

Configurations

• AC…F2 flange coupling with element vulcanized to a bolt-on sleeve (two mounting lengths from one hub)
• AC…F2K for radial element exchange without moving the coupled machines
• Tandem versions with two coupling elements
• AC-T…F2 with taper bush shaft mounting
• Shaft-to-shaft versions with a second hub
• Version with fail-safe (get-you-home) device for mounting between an engine and a marine gearbox
• Version with integrated electromagnetic coupling to disconnect the drive

Applications

Main propulsion drives between diesel engine and gearbox, propeller drives, bow/stern thrusters and rudder drives, on-board generator sets, pumps, compressors and winches on ships, ferries and lifeboats; also gensets, pump drives and mobile machinery.