EagleBurgmann international
EagleBurgmann WORLDWIDE
With around 250 locations and 90 serve centers, we are represented in the most important economic regions of the world. The advantages are clear: short paths to our customers, fast response times and a shared language.
Issue and challenge:
In some countries such as Sweden and north-eastern Germany, distributed mobile converter units employ rotating converters to change three phase power drawn from the public network into single-phase AC for use as railway traction power. In these areas, there are no dedicated power lines to feed power to the railway network. The converters are mounted in a fixed position on a wagon, which allows a substitute converter to be used when they need repair or replacement. The converter consists of a motor and a generator. The bearing at one end of the generator rotor can move axially. The bearing is lubricated by oil. The fan wheels needed for cooling at both ends of the rotor develop a vacuum that sucks the bearing oil into the stator and into the rotor contained within it. An easily fitted, short bearing seal with leakage removal is needed here to prevent the stator and rotor from getting oiled up.
Solution from EagleBurgmann Espey:
The operator of the rail power converter unit trusted the Espey WD500 Special with leakage removal to prevent the stator and rotor becoming oiled up. The seal is designed for a temperature of 60 °C (140 °F), a pressure of 0.9 bar (13.05 PSI) and a rotation speed of 500 rpm. Thanks to the split casing it is easily mounted, and is only 50 mm (1.97 ”) long. The oil that seeps in as a result of the vacuum is trapped in a leakage collection vessel, and is removed from time to time. The seal solution has a long service life, is maintenance-free, and compensates for shaft movements.
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The Eagleburgmann Group
Sealing technology for plants and machines
EagleBurgmann is one of the worldwide leading providers of industrial sealing technology. Mechanical seals, seal supply systems, magnetic couplings, carbon floating ring seals, expansion joints, gaskets and packings as well as comprehensive services are used wherever reliability and safety are needed.
Mechanical seals and more
Sealing technology by EagleBurgmann is used worldwide in oil and gas industries, refineries, the petrochemical, chemical, and pharmaceutical industries, food processing, energy, water, mining, paper, aerospace, and other industries. Close to 5,800 employees provide their ideas, solutions, and commitment so that customers can rely on our sealing technology.
What makes us stand out is our excellent quality, great innovative capacity, and an extensive product portfolio for nearly all industrial processes and fields of application. Our product portfolio includes everything from mechanical seals and seal supply systems to magnetic couplings, carbon floating ring seals, expansion joints, and gaskets and packings as well as comprehensive services. Since we are part of the German Freudenberg and Japanese EKK group, we have all the necessary resources for a firmly based reliable partnership.