CENTA CARBON

Lightweight drive shaft made of carbon fiber reinforced plastic. For energy-efficient power transmission with higher possible speeds at the same time.

Developed in cooperation with the Technical University of Darmstadt and leading classification societies. Comparable or better than steel in terms of strength and stability, but with significant weight savings. Can be implemented in any length and for almost any torque. Can be combined with a large number of flexible couplings and connecting elements for optimal adjustment of the torsional vibration situation. Extremely durable and noise-reducing. With low thermal expansion, fatigue and corrosion-free.

Can be implemented in any length of up to ten meters per section. Handling, maintenance and cost advantages due to the elimination of additional components such as bearings and foundations.

Application

  • Numerous fast ferries (monohull and catamaran)
  • cruise ships
  • naval ships
  • luxury yachts
  • tractor
  • dredgers
  • sounding ships
  • drillships
    lifeboats
  • pleasure boats
  • hydrofoils
  • double-ended ferries
  • pilot boats

Characteristics

  • low weight – approx. 70% weight saving compared to conventional steel axles
  • low thermal expansion
  • sound deadening
  • maintenance free
  • long lifespan
  • large span possible, without intermediate bearings up to 12 meters

Torque: 0.1 – 650 kNm
Elastic Material: CFK
Temperature range: -40° – +90°C

CENTA CP

Versatile clutch with flange bearing. For short switching operations and effective protection against mechanical loads.

Combination of torsionally flexible coupling and electromagnetic clutch, mounted in a flange bearing housing. Extremely robust and reliably stored construction. Allows the output unit to be switched on and off under load and protects the connected shafts and bearings from harmful reaction forces. Effectively ventilated, with high reliable power dissipation. Compared to conventional hydraulically actuated clutches, it convinces with an extremely economical design and a short installation length.

To be operated with on-board voltage. Delivered pre-assembled with flywheel connections according to SAE.

Materiaal: depending on the coupling used

Temperature: depending on the coupling used

 

Application

  • ship propulsion
  • pump sets
  • generator sets
  • bow thruster installations
  • rudder propeller installations etc.

Characteristics

  • A combination of the progressive CENTAFLEX-R torsion clutch, a dry electromagnetic clutch and a bearing housing.
  • Short installation length.
  • Specially developed temperature resistant elastomer for high damping, suitable for ambient temperatures above 100°C.
  • Special oil resistant ‘HD’ rubber rollers are available.
  • Proven design and approved by various class societies.

CENTA FH

Flange bearing to protect the crankshaft of engines. To compensate for high forces caused by large deflection angles of connected components.

Robust flange bearing housing made of hardened aluminium. Extremely low-maintenance and durable bearing construction. Absorbs reaction forces and transfers them to the flywheel housing to protect the crankshaft and its bearings. Also available with speed-controlled centrifugal clutch for smooth engagement of connected components. Extremely light and compact dimensions. Effectively ventilated.

Installs and maintains with minimal effort. Delivered pre-assembled with flywheel connections according to SAE.

Characteristics

  • Robust bearing housing made of hardened aluminum.
  • Maintenance-friendly design and long bearing life.
  • Captures reaction forces and transfers them to the flywheel housing to protect the crankshaft and crankshaft bearings.
  • Also available in combination with a centrifugal clutch for speed-dependent engagement of the connected components.
  • Extremely light and compact design.
  • Effective internal cooling.
  • Easy installation and maintenance-friendly.
  • Suitable for flywheel connections in accordance with SAE standards.

CENTA-SCS – SMART CLAMPING SET

SMART CLAMPING SET

Compared to conventional clamping sets, the CENTA-SCS clamping set for the friction-locked connection of rotor shaft and gear shaft, Shows various advantages for the application in wind turbines. It is much lighter in weight, shows compact space saving dimentions in diameter and connecting length as well as cost benefit.

The design meets the CCV specifications for low temperatures in operation ranges of -40 to +70° C as well as the corrosion Standards acc. ISO 12944/C3 centre – C4.

Assembly can be either done by a torque wrench or hydraulic device.

Application

wind turbines

Characteristics

  • friction locked
  • light weight
  • extremely compact build

Torque: up to 8600 kNm, higher torques on request
Temperature range: -40° – +70°C

CENTA-TLMS

Torque Limiter Monitoring System

Remote monitoring system for torque limiting couplings.

Functions:

  • Detection of slip angle, slip velocity and other variables of a “slip event”
  • Direct conclusion on the wear of the torque limite
  • Allows for optimization of maintenance intervals
  • Remote access via web interface
  • Configurable messages to trigger email alerts and/or switching outputs
  • Easy installation, setup and use

The surveillance of slip angle by CENTA TLMS allows the detection of occuring loads on a torque limiting coupling.

By comparison of the recent loads and critical values of the coupling, the necessitiy for an exchange and the maintenance of the complete unit can be optimized.

The system has specially been design for the application in demanding environments such as wind turbines.

Please contact us for further Information.

Application

  • wind turbines
  • industrial plants
  • machine and plant manufacture

Operation temperature: -20° C bis 70° C
Temperature in storage: -40° C bis 85° C

CENTADISC-C

Numerous CENTA carbon fiber drive shafts up to 23,000kW have been successfully installed over the years. In the range up to 40 kNm, however, there is a great demand for lightweight drive shafts.

CENTA has developed the CENTADISC-C drive shaft especially for this range. These intermediate shafts are made of composite (glass or carbon fiber) which are connected at the ends with torsionally rigid, but axial and angular flexible plastic elements. This creates maximum flexibility for large spans despite the (torsional) stiffness of the shafts.

For more than 6 years, CENTA has achieved groundbreaking results by using custom-made torsion-elastic composite drive shafts. Based on its broad knowledge and proven experience, CENTA can now also supply a complete series of standardized drive shafts for electric motors.

Application

Application areas can be found in the increasingly emerging electrically powered propulsion installations and other drives, including the offshore industry.

  • between engine and transmission
  • or water jet (in combination with a torsion-resistant coupling)
  • and between the gearbox and the water jet
  • cooling tower drives
  • water pumps

Characteristics

  • High rotational speeds, with no intermediate bearings required.
  • Large spans possible with lengths of up to approximately six meters.
  • Low weight due to the use of composite combined with plastic elements. If possible, no steel parts used.
  • Maintenance and corrosion free.
  • Simple (dis)assembly.
    Exact alignment of the shafts is not necessary due to the great flexibility of the intermediate shaft.
  • Long lifespan.
  • Shape-retaining due to the materials used, even with temperature changes.
  • Approved by various class societies.

CENTADISC-M

EXTREMELY LIGHT, FLEXIBLE AXIS

The CENTADISC is derived from the patented membrane design of the CENTAX series M, and is suitable for all possible forms of compensation for misalignment. The intermediate shaft can be made of steel or lightweight composite (carbon fibre) in lengths up to 12 meters. Any desired shaft length can be achieved using additional bearings and diaphragms.

Application

  • ship drives; especially between gearbox and water-jet for fast ships
  • pump drives
  • cooling towers
  • printing machines
  • paper mills
  • general mechanical engineering

Characteristics

  • High axial and angular flexibility. The tandem diaphragm system is radially rigid. However, due to the cardan action of this system, the intermediate shaft is radially elastic because all radial alignment differences are converted into an angular alignment difference.
  • The total allowable radial displacement depends on the length between the diaphragms and the admissible angular alignment difference per diaphragm set.
  • Compensation of relatively large alignment differences, displacements and misalignments with low reaction forces.
  • Compact economic design, light weight, low inertia, high balancing accuracy and temperature resistant.
  • Insensitive to wear and maintenance free.
  • Easy assembly. All components can be easily assembled and disassembled without moving the connected components.
  • All components are securely connected to each other based on frictional torque transmission. The connecting pieces are radially secured, so they cannot take on a life of their own in the event of a possible diaphragm failure.
  • A spin protection is available as an option.

CENTADISC-T

CENTADISC-T – The membrane coupling with option for integrated
overload function for applications in rail drives between e-motor and
gear. Optimum application in drives on one bearing, where the rotor
of the electric engine is born via the coupling. A new feature to
the base design is added by electrical insulation within the membrane.
Layout and design are identical to the steel variant in handling
and technical data. Large insulation spans eliminate leakage or high
frequency currents. High capacity resistance and optimum protection
of the driven side are the result. This new design is is an individual
solution for customer specific unit combinations and is combined with
overload slip units within the clamping hubs.

Application

Rail drives

Characteristics

  • axial und angular verlagerungsfähig
  • radial steif
  • elektrisch isolierend
  • kompakte Dimensionierung
  • sehr hohe Betriebsdrehzahlen

CENTAFLEX-A

The CENTAFLEX-A forms the basis of the entire CENTA elastic coupling program. The design dates back to 1970 and is still leading worldwide. The applications are endless. The CF-A coupling is characterized by high elasticity in axial, radial and angular directions. Moreover, it is maintenance-free and has an unimaginable amount of installation variants; in single form, or double gimbal acting. The CENTAFLEX-A is suitable for almost any connection between floating and driven implements.

Application

Antrieb von angeflanschten, d.h. gut fluchtenden, Hydraulikpumpen an Dieselmotoren – insbesondere mit verschleißfreier CENTALOC-Klemmnabe; die ideale und weitverbreitete, zuverlässige Kupplung für hydrostatische Baumaschinen-Antriebe.

Characteristics

  • Simple, compact design.
  • Low weight, low mass moment of inertia.
  • High performance.
  • High rev range.
  • Large shaft bores possible.
  • Available with anti-rotation protection.
  • Large permissible twist angle with progressive spring characteristic.
  • About 4 to 6 degrees at rated torque.
  • High elasticity and flexibility in radial, axial and angular directions with low reaction forces on shafts and bearings.
  • Shock and vibration absorbing.
  • The torque transmission takes place absolutely free of play, with contact noise being insulated. Also electrically there is no conduction.
  • The CENTAFLEX-A is maintenance-free. The rubber parts do not wear out, which guarantees a long life.
  • The clutch does not lose any rubber dust particles during operation.
  • The rubber element can be easily disassembled and mounted without special tools.
  • The rubber elements are available in different hardnesses and materials, in order to obtain the most suitable element for each system from a torsion point of view.
  • The coupling can be easily aligned.

Highly elastic homokinetic drive shaft for connecting the gearbox and propeller shaft. For applications with large angular deviations.

Torque transmission via a double cardanic drive shaft with a CV joint on one side and a highly elastic rubber element on the other. Dissipation of the propeller thrust via a self-aligning thrust bearing on the hull. Specially designed to reduce noise and vibration. Dampens torsional vibrations and shocks, interrupts structure-borne noise and tolerates (homokinetic) angular deviations of up to 8 or 3 degrees. Also offers a high level of electrical insulation.

Mounts via a clamping hub with minimal effort. Delivered with integrated anti-rotation device and in largely ready-to-install condition.

Application

  • Between engine and transmission
  • Between gearbox and propeller shaft
  • Between water jet
  • Between Z-drive etc.

Characteristics

Is mounted between gearbox and propeller shaft, whereby the thrust of the propeller is absorbed in the thrust bearing.
Depending on the size and speed of the CENTAFLEX-ACV, an angle between the output shaft/flange of the gear unit and the propeller shaft of up to approx. 6 degrees may be allowed.

The elastic motor mounts under the motor/gearbox combination do not have to absorb any axial pressure force.

CENTAFLEX-AGM

Highly elastic homokinetic drive shaft for connecting the gearbox and propeller shaft. For applications with moderate angle deviations.

Backlash-free torque transmission via a double-cardanic drive shaft with two highly elastic rubber elements. Dissipation of the propeller thrust via a self-aligning thrust bearing on the hull. Specially designed to reduce noise and vibration. Dampens torsional vibrations and shocks, interrupts structure-borne noise and tolerates (homokinetic) angular deviations of up to 3 degrees per element. Also offers a high level of electrical insulation.

Mounts via a clamping hub with minimal effort. Delivered with integrated anti-rotation device and in largely ready-to-install condition.

Application

  • Between engine and transmission
  • Between gearbox and propeller shaft
  • Between water jet
  • Between Z-drive
  • Etc.

Characteristics

Deze high elastic coupling, combined with Stuwdruklager, biedt u het voordeel dat large radiale verillen moeiteloos opgevangen been able. Afstanden must be kept in Schroefas eenvoudig overbrugd, zonder daarbij concessions te doen in het trillingdempend fortune van de kupplungen. Hierdoor kunt u de Plaats van de motor zo cheap mogelijk bepalen m.b.t. the weight change in the second point of the wall.

The toegepaste tussenas is torsion trilling technically zeer zacht, en dempt daardoor de aanwezige motor trillingen en het optredende geluid hiervan optimal. Door used for the individual pressure bearing that is used for the motor as well as for the coupling of the axial forces before the end of the schroefas. In this case, the combinations are more flexible, depending on what the setting is.

CENTAFLEX-AM

Highly flexible coupling for connecting gearbox and propeller shaft. For maximum comfort on board.

Backlash-free transmission of torque and propeller thrust via a highly elastic rubber element with thrust bearing. Specially designed to reduce noise and vibration. Dampens torsional vibrations and shocks, interrupts structure-borne noise and compensates for moderate axial, radial and angular displacements. Also offers a high level of electrical insulation. Available in a wide standard range for engine outputs of up to several hundred kW.

Mounts via a clamping hub with minimal effort. Delivered with integrated anti-rotation device and in ready-to-install condition.

Application

  • Between engine and transmission
  • Between gearbox and propeller shaft
  • Between water jet
  • Between Z-drive etc.

Characteristics

The CENTAFLEX-AM is puncture-proof and a built-in stud pressure element allows this coupling to transmit thrust. If the AM coupling is placed before a thrust, then the thrust element must be removed.

Is mounted between gearbox and propeller shaft, whereby the thrust from the propeller is transferred to the gearbox.

CENTAFLEX-B

Flexible shaft coupling in economical design. For maximum application flexibility.

Extremely robust and fail-safe jaw-type design with elastomer element subjected only to compressive stress. Characterised by intermediate torsional stiffness with progessive characteristic. Dampens torsional vibrations and shocks and compensates axial, radial and angular misalignments. Many design variants and economical design. Oil-resistant and also available in thermally resistant design.

As drive shaft available in any length required by the installation requirements. Delivered preassembled. Axial or radial mounting with minimum effort. CENTALOC clamping or taper lock bushes optionally available to prevent wear and frictional corrosion on not backlash-free hub to shaft connections.

Application

  • between e-motor and gear
  • pumps
  • pumping sets
  • flexible u/joint

Torque: 0.032 to 1.4 kNm
Elastic Material: PU / TPE
Temperature range: PU -40° to +80°C & TPE -50° to 150°C

CENTAFLEX-BL

A low maintenance robust claw type roller coupling for harsh impact loaded applications in electrical and heavy industrial applications.

Steady and reliable transmission of the torque at a relatively small outer diameter. Easy and fast maintenance due to high modularity and standardization of the components as well as absolute system stability are features of this uniquely compact coupling for both rotation directions. And, the design is also impressive considering its dimensions and cost.

The features of CENTAFLEX-BL ensure damping of impacts and overload as well as torsional vibrations and compensate for misalignments due to operation.

Application

  • compressor drives
  • generators
  • crushers and mills
  • conveyor technology
  • rolling mill drives
  • technical building systems
  • heavy industrial drives

Characteristics

  • compact sizing
  • extremely easy to assemble
  • inexpensive

Torque: 70 – 176 kNm
Elastic Material: NR
Temperature range: -45° – +80°C

CENTAFLEX-CO

Highly flexible coupling with an almost linear characteristic. For drives susceptible to torsional vibrations.

Extremely robust and reliable construction with rubber rollers that are only subjected to pressure. Characterized by an almost constant torsional elasticity over the entire performance range. Dampen torsional vibrations and shocks and compensate for moderate axial, radial and angular displacements. Extremely compact dimensions, effectively ventilated and with a high permissible power loss. Suitable for high ambient temperatures.

Axially pluggable and freely adjustable. Maintainable with minimal effort. With flywheel connections according to SAE. Also available for non-standard flywheels.

Application

  • screw compressor
  • centrifugal pumps
  • pump transfer case
  • generators
  • boat drives

Characteristics

  • High torsional elasticity, backlash-free, characterized by an almost linear spring characteristic.
  • By varying the dimensions and choice of material of the rubber rollers, an infinite variety of spring stiffnesses can be realised. This makes it possible to obtain the ideal coupling for every situation.
  • Torsion-damping, shock-absorbing, sound-absorbing.
  • Compensates for any possible misalignment.
  • In the design, a lot of attention was paid to the airflow that ensures the cooling of the rubber parts. This results in a high temperature resistance.
  • The coupling is wear-resistant, reliable and maintenance-free.
  • Easy installation due to axial pluggability and variable axial positioning.
  • Compact design, suitable for SAEJ620 and non-standard flywheel terminals.

Torque: 0.08 – 0.5 kNm
Elastic Material: NR /Si
Temperature range: NR -45° – +80°C / Si -45° – 120°C
Scroll to Top