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Essieu
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Axle, английский
The circular shaft connecting two wheels to form a `wheelset` (q.v.). the wheels are an interference fit to ensure the gauge is maintained. wheels are removed by forcing them off after injecting oil under high pressure into the wheel hub through a specially designed aperture drilled in the hub.
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Axle load, английский
- The gross load of a vehicle divided equally by the number of axles. axle loads permitted relate to vehicle speed, track design and condition. uneven distribution of loading in vehicles causes exceedence of permissible axle loads leading to vehicle and track damage and the possibility of derailments.
- The weight limit applied to trains passing over a line by the railway civil engineer. it is the limit allowed to be applied to any one axle on the train. always the bane of the life of a rolling stock designer. axle load refers to the maximum weight permitted on a single axle. a four-axle vehicle weighing 60 t (metric tonnes) would have an axle load of approximately 15 t depending on how the weight was distributed. in the uk the maximum axle load is 20 t on most main lines. the european maximum is 22.5 t.
Processus d'automatisation, французский
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