This site uses cookies which allow us to give you the best browsing experience possible. To find out more, please see our Privacy Policy.

Menu

Turbo gear units and components

Fulfilling the highest demands

    The turbo gear market is challenging: the demand for high quality and reliable products, the requirement for high plant availability, the need for extended service performance by the suppliers plus intensive cooperation with the original equipment manufacturers (OEMs) and sub-suppliers characterize this segment.

    As a manufacturer of turbo gear units, Voith sees itself faced with continually increasing challenges in engineering and order processing on the side of the OEMs. In large parts, these increased demands are driven by the plant operators. The consequences are higher speeds, more power and greater pitch-line velocities with lower power losses, lower noise levels, shortened delivery times and continued cost optimization. At the same time a very high level of operating reliability must be secured. Voith is facing these challenges and meets the requirements of the market.

    GET IN TOUCH WITH OUR EXPERTS

    Our product portfolio

      Our customers can choose from innovative products built according to specification from a range of designs and types available.

      Parallel shaft gear units

      Parallel shaft gear units convert torque in turbo drive trains.

      Reliable transmission of maximum efficiency

      Parallel shaft gear units have the capacity to transmit very high powers and speeds with high efficiency. The basis for this capacity is the ability of an optimized gear design in accordance with decades of experience, all current technical guidelines, plus specialized in-house calculations.

      Parallel shaft gear units are designed and manufactured for powers up to 85 MW and speeds of up to 60 000 rpm. Three single-stage gearbox ranges cover gear ratios up to 11:1. For higher ratios a two-stage model range is available. All gear units are characterized by quiet operation and a long service life. These units are employed in just those situations where a well-developed system with very high reliability is required.

      Power transmission up to 85 MW
      Speeds up to 60 000 rpm
      Efficiency up to 99.4%
      Gear ratio

      up to i=11 (single-stage)

      up to i=20 (two-stage)

      Housing design

      cast, welded

      horizontal or vertical shaft offset

      Toothing

      double-helical

      single-helical with thrust collar

      single-helical with axial bearing

       

      Benefits

      • highly customized gear box solutions according to the operator's technical needs
      • highest reliability ensures availability of the drive train
      • reduced operating costs and CO2 emissions
      • best-in-class efficiency
      • low oil consumption by innovative bearing technology
      • high gear toothing quality
      • minimized noise level below 82 dB(A) for most applications
      • long service life

      Integral gear units

      The integral gear unit is the central component in turbo gear unit compressors. These compressors generate up to 250 bar of pressure and can reach volumetric flow rates of up to 600,000 m³/h.

      Core unit for highly efficient compressor systems

      Integrally geared compressors have now established themselves in the process industry due to the lower space requirement and the higher total efficiency of the compressor package. It is precisely in air separation, oil and natural gas processing, and the general chemical industry, that new solutions and designs are being sought. Voith as supplier of the ‘core unit’ of an integrally geared compressor is developing and offering this expertise together with its customers.

      Tailor-made to the relevant application and customer specification, integral gear units are designed and manufactured with up to 10 compressor stages, total unit weights of up to 70 tonnes, and gear pitch wheel diameters measuring over 3 meters. Gear ratios of up to 25:1 have been achieved thus far. The gear set is typically designed with single helical toothing and thrust collars.

      Power transmissions up to 55 MW
      Speeds up to 55 000 rpm
      Rated output torque up to 150 000 Nm
      Compressor stages up to 10
      Efficiency up to 98.5% (99.2%)
      Gear ratio up to i=25
      Housing design cast, welded
      Toothing

      single-helical with thrust collar (standard)

      single-helical with separate axial bearing

       

      Benefits

      • highly customized gear box solutions according to the operator’s technical needs
      • highest reliability ensures availability of the drive train – even for critical applications
      • reduced operating costs and CO2 emissions
      • enables low vibration values of overcritical rotors
      • extensive experience in rotordynamic analysis
      • weight-optimized and torsion-resistant
      • combinable with existing power sources
      • high gear toothing quality
      • minimized noise level due to special tooth profiles
      • long service life

      Planetary gear units

      Planetary gear units convert torque reliably and effi­ciently in turbo drive trains.

      High speeds, gear ratios and torques

      Worldwide, Voith is known as the most experienced manufacturer of epicyclic gear units according to the Stoeckicht principle. With this design based on the well-known Stoeckicht principle, the unsupported sun wheel plus the unsupported radially elastic annulus halves effect an equal load distribution on the planets and this in turn produces less wear and tear on the components. The consequence is a high power density with low space requirement, combined with lower weight.

      Voith designs epicyclic gear units up to powers of 45 MW, speeds of up to 80 000 rpm and torques of over 550 kNm. With single-stage design ratios up to 12:1 and with two-stage ratios up to 80:1 are achieved.

      Power transmissions up to 45 MW
      Speeds up to 80 000 rpm
      Rated output torque up to 550 000 Nm
      Efficiency up to 99.4%
      Gear ratio

      up to i=12 (single-stage)

      up to i=18 (compound star)

      up to i=80 (two-stage)

      Housing design cast (standard), welded
      Toothing double-helical (standard), spur

       

      Benefits

      • highly customized gear box solutions according to the operator’s technical needs
      • highest reliability ensures availability of the drive train reduced operating costs and CO2 emissions
      • highest efficiency for high gear ratios
      • best load equalization due to Stoeckicht principle
      • smallest footprint due to inline arrangement
      • compact, low-weight and space-saving drive trains
      • high gear toothing quality
      • minimized noise level due to special tooth profiles
      • long service life

      Power distribution gear units

      The power distribution gear unit converts torque in turbo drive trains at trans­mitted powers up to 170 000 kW.

      Extending the limits to higher powers and speeds

      The power distribution gear unit converts torque in turbo drive trains at trans­mitted powers up to 170 000 kW or at speeds of up to 100 000 rpm. Power distribution gear units are especially well-suited for use where other types of gear units exceed their technical limits. They utilize the advantages of parallel shaft and planetary gear units and leverage these advantages to be able to combine high rotational speeds and high powers. Examples of where the need for this capability arises are machine trains with gas turbine-driven turbo compressors.
      Even under harsh operating conditions, power distribution gear units exceed 250 000 operational hours. The gear unit efficiency in these high-end applications can reach levels of up to 98 percent.
      Power transmission up to 170 MW
      Speeds up to 100 000 rpm
      Efficiency up to 98%
      Gear ratio up to i=10
      Housing design welded, cast
      Toothing spur
      double-helical
      single-helical toothing

       

      Benefits

      • highly customized gear box solutions according to the operator’s technical needs
      • highest reliability ensures availability of the drive train reduced operating costs and CO2 emissions
      • excellent price-performance ratio
      • applicable for speed and power ranges beyond the limits of other gearbox types
      • long lifetime thanks to the power splitting principle
      • low maintenance and inspection costs
      • high gear toothing quality
      • minimized noise level due to special tooth profiles
      • long service life

      Rotor turning devices

      Reliable turning of shaft trains

      Rotor turning gears are esteemed as a reliable and inexpensive aid for the turning of rotors. Compared with other design solutions they are wearresistant, longlasting and require low-maintenance. They offer the plant operator greater safety even at high turning speeds, high breakaway torques and high mass moments of inertia.

      Rotor turning gear units are used primarily to break out and start shaft trains. They are also used to turn rotors slowly so that the armature cools down evenly and therefore remains dimensionally stable. At the same time, uneven debris in the blade channels is avoided. In addition, they are used to align and position shaft trains. The speeds of rotor turning gears are up to 500 rpm, the breakaway torques from 300 to 100 000 Nm.

      Motor power up to 200 kW
      Speeds up to 500 rpm
      Breakaway torque and mass
      moments of inertia
      300 to 100 000 Nm
      up to 100 000 kg m²
      Design models

      with overrunning clutch

      with swivel pinion

      Meets the following standards ATEX
      Special designs

      with hydraulic motor

      with return stop

      with hydraulically triggered overload coupling

      with switched overrunning clutch (lockout)

      Delivery options

      control cabinets

      attachments: adapter flanges, gear rims, soft starters

       

      Benefits

      • highly customized gear box solutions according to the operator’s technical needs
      • highest reliability ensures availability of the drive train
      • high degree of flexibility
      • value stability of equipment due to protected precision-controlled rotor cooling
      • long service life

      Diaphragm couplings

      Reliable within the threshold range

      The fully developed and high-quality Voith Turbo BHS diaphragm couplings have proven their worth, especially in turbo systems. As a firstclass product with low weight, they are capable of transmitting high torque at high speed. At the same time, they compensate for axial, radial and angular misalignment of two coupled shafts.

      Diaphragm couplings are designed and manufactured by Voith for torques of up to 1 500 000 Nm and speeds of up to approx. 80 000 rpm. The standard program includes couplings suitable for angular misalignment up to 0.25°. Special model types for angular misalignments up to 0.5° are available. These high performance couplings meet the requirements of API 671 and ISO 10441. They are approved for Zone 1 and Zone 2, in accordance with ATEX.

      Power transmission up to 70 MW
      Speeds up to 80 000 rpm
      Torque up to 1 500 000 Nm
      Design models EconTors®: (single diaphragm)
      TwinTors®: (double-diaphragm)
      Connection type

      inside hub

      outside hub

      flange

      Diaphragm-sleeve connection

      bolted

      welded

      adhesive (CFRP sleeve)

      Meets the following standards

      API 671

      ISO 10441

      ATEX, zone 1 and 2

      Special designs

      torque-sensing spacer sleeve

      lightweight design (CFRP)

      low-windage design (optimized air flow characteristics)

       

      Benefits

      • highly customized gear box solutions according to the operator’s technical needs
      • highest reliability ensures availability of the drive train
      • combinable with existing power sources
      • high degree of flexibility
      • wear-free design minimizing maintenance expenses
      • very low turbulence
      • low-weight
      • special noise-protection measures
      • minimized noise level
      • long service life

      Explore other relevant products

        AeroMaXX

        The AeroMaXX technology is a clever but simple and, most importantly, reliable solution that considerably increases the efficiency on the one hand and reduces oil consumption on the other hand.

        Get to know our product portfolio

        Your contact

          Sales

           

          t +49 8321 802-825

          Service

           

          t +49 8321 802-826

          24/7 emergency helpline

           

          t +49 8321 802-555

          Our service increases your plant productivity

            As a specialist in high-performance gear units, Voith offers you an attractive service and consulting package over the service life of the product.

            Publications

              Social media news and press releases

                RIGHT OFFCANVAS AREA