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Torsionally Stiff Flange Couplings for Pump Drives.

With RCT couplings REICH offers an optimal drive solution for the connection of diesel engines to hydraulic pumps. Due to the torsionally stiff design of the RCT coupling, critical resonances can be shifted into the range above the operating speeds.



Sub critical operation through high torsional stiffness
Vibration and torque shock damping through flexible rubber coating
High torque transmission capacity, fail-safe
Ambient temperatures from -25 °C to +100 °C
Compact, robust, maintenance-free
Ease of assembly thanks to the plug-in axial design
Backlash-free shaft-hub connection
Compensation for axial, radial and angular misalignments
Multiple spline options for the connection to the pump shaft
Bellhousing flanges for almost any mounting situation

Standard types

Designed to Customer

  • Couplings individually developed according to customer requirements
  • Effective and efficient customer solutions through largely modular components
  • Close cooperation with our partners: consulting, development, design, manufacturing, integration
  • Customer-specific production and logistics concepts, as well as after-sales service
  • Global availability
  • For standard products as well as for production in small batch sizes.

Type D2C “Your design”


Tailor-made couplings

Industry-specific requirements - tailored solutions.
  • REICH-mobil Truck
  • REICH-Kupplungen-kompressor Schrauben


-25 °C to 100 °C
300 Nm to 1000 Nm
Torsionally stiff flange couplings

We are glad to see that you are interested in our product line and are happy to answer all questions. Use our contact form or simply call: +49 (0)234 959160.

With RCT couplings REICH offers an optimal drive solution for the connection of diesel engines to hydraulic pumps. Due to the torsionally stiff design of the RCT coupling, critical resonances can be shifted into the range above the operating speeds. This enables sub critical operation of the drive without passing through detrimental torsional vibration amplitudes.

The RCT coupling, like the decade-long proven ARCUSAFLEX® coupling, is designed as an axially pluggable flange coupling. The coupling element consists of a robust metal inner body with a thin rubber coating that effectively dampens torque shocks. In addition, small axial, radial and angular displacements which are common to flanged hydraulic drives can be compensated for.

Numerous standardized tooth profiles ensure a backlash-free clamping connection between the RCT coupling and the pump shaft. The coupling flanges are matched to SAE flywheel dimensions.

As a supplementary service, REICH also offers a multitude of bellhousing flanges through which the vast majority of combustion engines and hydraulic pumps can be connected.

REICH can also develop an optimised solution for non-standard designs following the principle “D2C – Designed to Customer”.

The technical data applies only to the complete coupling or the corresponding coupling elements. It is the customer’s/user’s responsibility to ensure there are no inadmissible loads acting on any of the components. In particular, existing connections, e.g. bolted connections, must be checked with regard to the torques to be transmitted. If necessary, further measures, such as additional reinforcement with pins, may be necessary It is the customer’s/ user’s responsibility to make sure the dimensioning of the shaft and keyed or other connection, e.g. shrinking or clamping connection, is correct. All components that can rust are protected against corrosion as standard.

REICH have an extensive range of couplings and coupling systems to cover nearly every drive configuration. Customized solutions can be developed and manufactured even in small batches or as prototypes. In addition calculation programs are available for all necessary dimensioning.


Further information

Do you require further product information, operating or assembly instructions, do you have questions for the sales department or would you like general product advice? Contact us directly - the REICH team will be happy to assist you and will be at your disposal for all your requests.

You can reach us by phone, from Monday to Friday 07:30 to 16:00, by phone +49 (0)234 959160, by e-mail to or via the contact form. If you would like to convince yourself personally of the quality of our products, we are pleased to welcome you to our main plant in Bochum.

REICH, the REICH subsidiaries and sales partners are regularly represented at national and international trade fairs. Take advantage of the opportunity to have a personal conversation with our experts. Get a live impression of the innovative REICH-products as well as of our company and its services.

Our exhibition teams look forward to your visit!

Upcoming trade fair dates:

Automotive Testing Expo Europe
4 June 2024 to 6 June 2024
Bauma China
26 November 2024 to 29 November 2024
SMM Hamburg
3 September 2024 to 6 September 2024
Automotive Testing Expo China
28 August 2024 to 30 August 2024
Product catalogue
RCT Product catalogue
Thumbnail Of RCT_2022-03_en_REICH_20230120_Questionaire
Coupling selection
RCT Coupling size selection
Operating instruction
on request.
Distribution network
Global sales network
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