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Connection couplings

Leading the way in connection technology

    Voith connection couplings transmit torque, backlash-free in a friction joint. They transfer the most torque in relation to size, which adds high performance and allows for more effective dimensioning of the driveline. Setting and releasing occurs hydraulically, which enables fast installation, service and maintenance.

    All models can be customized to suit existing, as well as newly designed interfaces. Torque limiting, process improving and connection couplings from Voith help protect high-value rotating equipment components and increase productivity in a variety of industries.

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    Our product portfolio − Superior in every way

      Voith's comprehensive product portfolio covers a range of connection couplings with capacities from 1 to 20 000 kNm.

      HyCon for outstanding performance

      HyCon has an increased payload capacity due to at least 40% reduced system weight
      The HyCon connection coupling consists mainly of a tapered parts sleeve and a tapered hub. To secure the shaft, the tapered hub is hydraulically pushed up onto the tapered sleeve. The pressure assembly creates a tight grip that holds the shaft. When the coupling is pressurized, the tapered surfaces are totally separated from each other. The seals on both sides of the coupling ensure that no oil leak can occur. This smart design minimizes the environmental impact.

       

      HyCon is a typical application in the marine and heavy industries. It ensures a reliable low-weight friction connection with outstanding performance and torque capacity. HyCon is easily installed without oil leakage and is safe both for people and environment.

      Features and benefits

      Design features

      • Minimized hydrodynamic turbulence if located outboard
      • Tailor-made design for solid or hollow shafts
      • Torque capacity available from 1 to 20 000 kNm
      • Shaft-shaft and shaft-flange connections
      • Backlash-free connection
      • Flange bolts can be tightened before drive up
      • Sealed tapered surfaces ensure protection against seawater and oil leakage

       

      Benefits

      • Increased payload capacity due to at least 40% reduced system weight
      • Minimized installation time
      • Only one pump for setting and releasing
      • Easy to position axially and radially
      • Shock load resistant
      • Simple clamping process optimal for applications that require frequent changes
      • Safe work environment
      • Low maintenance need

      HyGrip for rapid installation

      HyGrip couplings for quick-release customer-specific shaft-hub connections
      The HyGrip connection coupling consists of a twin-walled pressure sleeve. It is pressurized with oil up to 1 000 bar and sealed with a brass valve. This results in a completely backlash-free frictional connection. HyGrip connection couplings can be specifically designed to meet the exact requirements of the application. The torque transmission capacity and the axial forces are proportional to the oil pressure. The connection can be set and released very quickly if a suitable hydraulic pump is used. HyGrip couplings have limited radial force capacity.

       

      Typical industrial applications are, for example, fixing of straightening and cutting rolls where the radial forces are low, or fixing of flexible drive shafts and couplings for easy assembly and disassembly.

      Features and benefits

      Design features
      • Backlash-free connection
      • Design optimized for simple assembly and disassembly
      • Minimized radial and axial run out
      • Robust design
      • High friction coating (HFC) optional

       

      Benefits
      • Improved control of processes
      • Increased service life of all driveline components
      • No notch effects as the keyways are eliminated
      • Rapid and accurate installation
      • Improved control of actual process
      • Able to withstand dirty and difficult environments
      • Extremely high torque capacity

      HyLoc for extreme radial forces

      HyLoc couplings for shaft-hub connections
      The HyLoc connection coupling consists of a hollow sleeve, where the internal chamber is a conical ring piston that is moved hydraulically. The ensuring radial expansion produces a backlash-free connection between a shaft and a hub. The pressure required for assembly is normally 1 000 bar. A maximum of 1 200 bar is usually required for disassembly. After assembly, the oil is drained so that there is no residual oil pressure in the coupling during operation. The same applies for disassembly. The ring piston is provided with specially arranged lubrication grooves, hence a lubricating film is created when the ring piston moves between the working surfaces.

       

      HyLoc is used in multiple applications, for example fixing of straightening and cutting rolls in the steel industry and fixing different hubs and runners as flywheels and turbines.

      Features and benefits

      Design features
      • Backlash-free connection
      • Design optimized for simple assembly and disassembly
      • Minimized radial and axial run out
      • Design optimized for withstanding high radial forces
      • Robust design
      • High friction coating (HFC) optional

       

      Benefits
      • Improved control of processes
      • Increased service life of all driveline components
      • No notch effects as the keyways are eliminated
      • Rapid and accurate installation
      • Improved control of actual process
      • Ideally suited for roll connections
      • Able to withstand dirty and difficult environments
      • Extremely high torque capacity
      • High radial force capacity

      We are always looking for new ways to improve our products.
      Erik Nordström, Senior technical adviser torque limiting and connection couplings

      High friction coating doubles the torque capacity

        The coupling friction surfaces are treated with a unique process, which more than doubles the friction factor. This gives the corresponding increase of the transmittable torque.

        Our surface treatment gives HyCon, HyGrip and HyLoc the most compact and effective connection coupling available on the market.

        A thin fatigue- and wear-resistant layer of tungsten carbide coating can be applied onto the inner surface of the coupling. The high friction coating (HFC) strengthens the bond between the shaft and sleeve, which more than doubles the torque capacity.

        HFC is standard on all HyCon and optional on HyGrip and HyLoc.

        Applications

          HyCon connection couplings can be used in:

          • Tankers and carriers
          • Offshore supply vessels
          • Cargo ships
          • Dredgers
          • Cruise ships and ferries
          • Mega yachts
          • Pilot boats

          HyGrip connection couplings can be used for:

          • Fixing of straightening rolls and cutting rolls where the radial forces are low
          • Fixing of flexible drive shafts and couplings
          • Knife/blade holders for rotating slitters

          HyLoc connection couplings can be used for:

          • Fixing of straightening and cutting rolls in the steel industry
          • Fixing of flywheels, turbines, coils, plates, etc.
          • Knife/blade holders for rotating slitters
          26 000
          Torque capacity up to kNm
          60
          Number of countries with Voith service network
          2 500
          Voith Torque limiting and connection couplings produced per year

          Your contact

            Voith Turbo Safeset AB

            Rönningevägen 8 82434 Hudiksvall, Sweden sales.safeset@voith.com

             

            t +46 650 540150

            f +46 650 540165

            Our services ensure maximum return on your investment

              Professional installation, training of your driveline personnel and high-quality service ensure that your torque limiting and connection couplings meet their full design potential.

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                • Connection couplings - Perfectly connected

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