Wheelset shaft
The wheelset shaft , abbreviated RSW , rigidly connects the two wheels, also called wheel disks, in rail vehicles . In addition to the wheels and wheelset bearings , wheelset drives and / or brake disks can be pressed on , depending on the design . The assembly is referred to as a wheel set (drive wheel set or wheel set).
The weight of the vehicle rests on the axles. In this context, the term axle load is often used colloquially .
The wheelset shaft is subjected to bending and torsion . If the left and right wheel disks swing against each other, this is called a "rattle". Even with the smallest notches, the wheelset shaft must be replaced. A distinction is made between solid shafts and shafts with a bore.
Manufacturing
For a wheel set shaft is a blank with the proper steel-quality forged, then to measure turned off , possibly with a longitudinal bore provided and painted.
Manufacturer
- Bochumer Verein Verkehrstechnik GmbH
- GHH Bonatrans
- Lucchini RS
- ORX (USA)
- CAF
Monitoring and testing
- Visual inspection (e.g. for cracks, notches, indentations)
- Non-destructive testing using ultrasound , magnetic particle and eddy currents
Accidents
A failure of the wheelset shaft has catastrophic consequences. All incidents are carefully investigated:
- Breakage of the wheelset shaft at IC 518
- Viareggio railway accident
Norms
- Interpretation: EN 13103, EN 13104, EN 13979
- Manufacturing: EN 13260, EN 13261, EN 13262
- Maintenance: EN 15313
Individual evidence
- ↑ http://www.bochumer-verein.de/de-DE/produkte/radsatzwellen/Seiten/default.aspx
- ↑ http://www.orxrail.com/index.html
- ↑ http://www.eurailpress.de/news/wirtschaft-unternehmen/single-view/news/deutsche-bahn-caf-liefert-radsatzwellen.html
- ↑ Reinhild Haacker: Cologne rail accident expert doubts the safety of ICE wheelset shafts on SPIEGEL online, July 19, 2008
- ↑ Georg Küffner: The long way to failure analysis: A wheelset shaft should last for 30 years , Frankfurter Allgemeine , March 19, 2009