radius arm

 

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radius arm

Wikipedia

radius arm (plural radius arms)

1. (mechanical engineering) A radius rod.
   • 1963 May, “Europe's latest high-power locomotives”, in Modern Railways, page 298:

     The axles are guided within the bogie frames by radius arms and are fitted with disc brakes; magnetic rail brakes are also provided.

• “radius arm”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.