Equalising beam

Equalising beam on a Prussian T 3

An equalising beam, equalising lever or equalising bar^{[note 1]} (German: Ausgleichshebel or Ausgleichhebel) links the suspension of two or more adjacent axles of a vehicle with more than two axles, especially railway locomotives. Its job is to provide 'compensated' springing,^[1] i.e. to ensure an even and statically determinate distribution of load to all the axles on uneven terrain or poorly laid track. The function of an equalising lever thus corresponds roughly to that of axle compensators or rockers (Achswippen).

Railcar bogie, with equalising beam

Notes

↑ Or "equalizing" beam,etc.

References

↑ Semmens, P.W.B. and Goldfinch A. J. (2003). How Steam Locomotives Really Work, Oxford and New York, OUP, pp. 242-243. ISBN 978-0-19-860782-3.

Locomotive running and valve gear

Valve gear types	Allan Baker Bagnall-Price Baguley Bulleid Caprotti Gab Gooch Gresley Hackworth Joy Kuhn slide Lentz Southern Stephenson Walschaerts

Bogie types	AAR type A switcher truck Articulated bogie Bissel truck Blomberg B Grovers bogie Jacobs bogie Krauss-Helmholtz bogie Pony truck Radial steering truck Schwartzkopff-Eckhardt II bogie

Other running gear elements	Adams axle Axlebox Beugniot lever Carrying wheel Coupled wheel Driving wheel Equalising beam Gölsdorf axle Journal box Klien-Lindner axle Leading wheel Luttermöller axle Radial axle Railway tire Trailing wheel Train wheel

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