The global site of the UK's leading magazine for automation, motion engineering and power transmission
21 September, 2018

Product and Supplier Search

Facebook

Magnetic bearings head for the Norwegian seabed

28 January, 2012

Magnetic bearings are being fitted on the motor shafts of a pair of compression systems due to be installed 200–300m below the surface of the Norwegian Sea. The oil-free, frictionless and almost maintenance-free bearings have been chosen to provide the efficiency, reliability and performance needed for continuous operation in the deep-sea Åsgard gas field.

The project involves placing two hermetically sealed compressors on the seabed to maintain gas flow pressure levels. They will maintain discharge pressures in the pipeline and compensate for the falling pressure as the gas field is depleted, thus boosting gas flows.
 
The French magnetic bearing specialist S2M, owned by SKF, has won the two-year contract to supply the custom-built bearings and their associated electronics from Man Diesel & Turbo, Aker Solutions Norway and Statoil.

In a magnetic bearing (above), the rotating shaft is supported and held in place by electromagnetic forces generated in radial and axial directions. These forces are controlled by sophisticated electronics and electromagnets to provide contact- and wear-free operation. The high-efficiency bearings can operate at high speeds, need no lubrication and, because there is no component wear, provide almost maintenance-free long operating lives.




Magazine
  • To view a digital copy of the latest issue of Drives & Controls, click here.

    To visit the digital library of past issues, click here

    To subscribe to the magazine, click here

    To see the latest Products & Services Directory, click here

     

Exhibition

Birmingham 2020The next Drives & Controls Exhibition and Conference will take place in Birmingham, UK, from 21-23 April, 2020. For more information on the event, visit the Show Web site

Poll

"Do you think that robots create or destroy jobs?"

Newsletter
Newsletter

Events

Most Read Articles