Reich ARCUSAFLEX Flange Coupling
A Highly flexible rubber disc coupling with an axial plug-in facility, providing a torsionally soft connection between an internal combustion engine and a driven machine.
The Reich ARCUSAFLEX® flange coupling has a highly flexible torque transmission characteristic which is achieved by a disc-shaped rubber element that is subjected to a torsional load and enables both, the absorption of high torsional vibrations and the compensation of major misalignments.
For an optimum adaptation to the conditions of application three different kinds of vulcanisates are available:
- For application temperatures up to 80°C a natural/synthetic caoutchouc mixture as a standard version
- up to 100°C a more heat resistant mixture and
- for higher application temperatures up to 130°C a silicone mixture.
Benefits
Advantages of the highly flexible ARCUSAFLEX® coupling:
- Very high torsional flexibility with a linear torsional deflection characteristic
- Backlash-free torque transmission
- Ease of assembly thanks to the plug-In type design 11 with ample axial float
- High torsional vibration and shock load absorbing capability
- Compensation of major misalignments
- Torque limitation protecting the drive against overload
Coupling Selection
Features
- Available in 15 sizes
- 200 Nm to 110000 Nm
- Temperature Range: -60°C – 130°C
- Couplings comply predominantly with the SAE J 620 and DIN 6281 standards.
- Compliant with EU regulation 94/9/EG (ATEX 95)
| Element Version | Sh A | VR | Ψ |
|---|---|---|---|
| WN | 55 | 7.85 | 0.8 |
| NN | 65 | 5.46 | 1.15 |
| SN | 75 | 5.03 | 1.25 |
| UN | 85 | 4.83 | 1.3 |
| WX (Silicone) | 60 | 5.46 | 1.15 |
Due to the physical properties of the rubber material, the measurable rubber hardness is subject to a variation that is defined as ± 5° Shore A according to DIN 53505. However, this variation is minimised by our own rubber production.
| Rubber mixture | Ambient temperature | Colour | Identifier |
|---|---|---|---|
| Natural / synthetic caoutchouc, standard version | -40 °C to +80 °C | black | …N |
| Natural/synthetic caoutchouc in temperature-resistant design | -25 °C to +100 °C | black | …T |
| Synthetic caoutchouc in temperature-resistant design*) | -25 °C to +120 °C | black | …Y |
| Silicone caoutchouc | -40 °C to +130 °C | blue | …X |
*) technical data available on request.
Featured Products
Type AC-T..F2 – Flange Coupling with Taper Bush
The ARCUSAFLEX® flange coupling type AC-T…F2 is equipped with a taper bush for shaft mounting. The rubber disc element is vulcanized directly to the taper hub. After completion of the assembly, a shrink-fit-like connection, free from backlash is established between the coupling hub with rubber disc element and the shaft. Thanks to the use of commercially available taper bushes with a number of different bore dimensions, the need for finishing the bore and keyway of the coupling hub is omitted for the ARCUSAFLEX® coupling type AC-T. The torque, which can be transmitted, depends on the particular taper bush.
Benefit
Ease of assembly and disassembly with no need for special tools!

Type AC…F2 – Flange Coupling with Bolted Hub
The ARCUSAFLEX® flange coupling type AC…F2 has the rubber disc element vulcanized to a bolt-on sleeve which in turn is bolted to a hub or similar component. Advantage: Depending on the arrangement of the rubber disc element, two different mounting lengths can be achieved using one and the same coupling hub.
Benefit
Depending on the arrangement of the rubber element, two different mounting lengths can be achieved using one and the same coupling hub.

AC…F2K – Flange Coupling for Radial Element Exchange
Type AC…F2K allows the detached element to be replaced without moving the coupled machines, provided that the shaft of the driven machine does not protrude from the coupling hub. Where the flywheel or flywheel housing protrudes excessively from the element, a spacer ring corresponding to oversize X is required for radial removal.
Benefit
Changing element without having to move the coupled machines possible.

AC…D F2 – Flange Coupling
Flange coupling with hub and two coupling elements operating in tandem.

AC-T…T – Shaft Coupling
Shaft CouplingCoupling element and separable flange hub with taper bush.

AC…D TK – Shaft Coupling
Shaft coupling with two hubs and two coupling elements operating in tandem.

AC…F2 DS – Flange Coupling
Flange coupling with fail-safe device (get-you-home-device), to be mounted between an internal combustion engine and a marine gearbox.

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