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Schwartzkopff-Eckhardt II bogie

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Title: Schwartzkopff-Eckhardt II bogie  
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Language: English
Subject: Bogie, Krauss-Helmholtz bogie, Carrying wheel, Kuhn slide, Equalising beam
Collection: Bogie, Steam Locomotive Technologies
Publisher: World Heritage Encyclopedia

Schwartzkopff-Eckhardt II bogie

A Schwartzkopff-Eckhardt II bogie (Schwartzkopff-Eckhardt-II-Lenkgestell or Schwartzkopff-Eckhardt-Gestell) is a mechanical device to improve the curve running of steam locomotives.

The Schwartzkopff-Eckhardt II bogie is a further refinement of the Krauss-Helmholtz bogie, whereby two coupled axles and the carrying axle are combined within the bogie. The carrying axle steers the second coupled axle via a long shaft and this also moves the first coupled axle via a Beugniot lever. This bogie is used on the DRG Class 84. Whether DR Class 99.23-24 locomotives were also fitted with this arrangement is not entirely clear.

It was named after the L. Schwartzkopff locomotive factory and its chief engineer, Friedrich Wilhelm Eckhardt.


  • Friedrich Wilhelm Eckhardt: Das Fahrgestell der Dampflokomotiven, Transpress, Berlin 1960
  • Friedrich Wilhelm Eckhardt: Lokomotivkunde. H. 5. Das Fahrgestell der Dampflokomotiven, Fachbuchverlag Leipzig, 1957

See also

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