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Centa has announced that it will be presenting industry-specific drive technology for rail applications at Innotrans 2010, the International Trade Fair for Transport Technology.

The Centaflex-T is a coupling for applications close to the wheel set in streetcars, light-rail vehicles and locomotives.

The wedge-type package coupling combines high-performance density with compact dimensioning.

This series is available in various sizes covering nominal torques from 1,200Nm to 17,000Nm.

The new design of the Centaflex-T makes use of an improved concept of radial-axial screwing that allows the drive shaft star to be omitted.

In addition, the number of wedged elements could be reduced due to an optimised geometry.

Centa also supplies a torsionally rigid steel membrane coupling, which provides a compact solution for electrical one-bearing drives in the bogie.

As an option, the coupling can be delivered with an overload unit for the protection against torque impulses, interrupting friction when the preset slip torque is exceeded.

The coupling is delivered with preset slip torque and individual calibration protocol.

Centamax couplings are already applied between engine and gearbox in diesel locomotives and between engine and generator in diesel-electric drives.

The performance range covers torques from 100 to 45,000Nm.

Due to the coupling’s flexibility, it shifts critical resonances to ranges below the operating speed, thus allowing unrestricted use of the engine’s overall operating speed range with only low continuous vibratory torques.

The Centax-V is Centa’s flexible intermediate coupling for rail drives, which is equipped with a universal joint shaft for power transmission.

The series includes 16 standard designs that cover torques from 230 to 44,000Nm.

Integrating a Centax-V into the transmission process achieves high torsional flexibility, which in turn shifts dangerous resonant vibrations to lower speed ranges below the operating range.

The company said that the coupling also features excellent damping characteristics.

The Centaflex-A is a robust and highly elastic drive shaft for diesel-electric auxiliary drives.

The shaft can be adapted in length to fit in with the individual installation conditions and is available for nominal torques up to 12,500Nm.

Its design principle is based on flexibility, compensation for misalignments and strong damping characteristics with a small restoring force.

Centalink is an elastic drive shaft that is suited for applications in confined spaces at the wheel drive for nominal torques up to 150,000Nm.

The links of this shaft are screwed on with flexible rubber bushes to allow adjustment of large misalignments while providing strong damping characteristics and electrical insulation.

Its design principal reduces installation, service and maintenance work to a minimum.

Centa will be exhibiting all of the above products and more at Innotrans 2010 in hall 20 on stand 124, from 21-24 September 2010.

Centa Transmissions

Founded in 1979, Centa Transmissions, is a specialist in the design, specification and manufacture of mechanical power transmissions for all types of industrial, plant and marine applications. Part of international group Centa Antriebe Kirschey, Centa supplies flexible couplings, gears, gearboxes, brakes and bespoke engineered drives to any specification and for any application.

Today, Centa is at the forefront of drive technology, having solved countless drive problems for international and UK manufacturing businesses. Centa’s reputation is built on the ability to solve problems, often specifying a combination of products that, as well as couplings, include precision gears, gearboxes, electromagnetic clutches and speed reducers. Centa has also developed their highly successful carbon fibre composite shafts for ships and boats and these are capable of covering spans of 10 metres without support.

Centa is also heavily involved in the renewable energy sector, working with research associations and specialist manufacturers to create mechanical transmission drives for systems in wind, wave, tidal and solar energy. With long-time involvement in the power generation sector, Centa is ideally placed to ensure that these environmentally friendly systems benefit from reliable and trouble-free drives, often submerged or in hard to reach locations that demand robust, totally sealed, maintenance-free operation.

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