1Ernesto

Hurley Train Wheelsets

A wheelset is the wheel - axle assembly of a railroad car.
Railway wheels sit on the rails without guidance except for the shape of the wheel in relatio...
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A wheelset is the wheel - axle assembly of a railroad car.
Railway wheels sit on the rails without guidance except for the shape of the wheel in relation to the rail head. Contrary to popular belief, the flanges should not touch the rails. Flanges are only a last resort to prevent the wheels becoming derailed - they're a safety feature. The wheel surface is coned and the rail head slightly curved and rails are also set at an inward angle. ...........

For passage around a curve the inner wheel uses the outer edge of its wheel to reduce the travelled distance. The flange of the outer wheel will only touch the curved rail if it is not in exact symmetry with the geometry of the track. This can occur due to incorrect speed or poor mechanical condition of the track or train. It often causes a squealing noise. It naturally causes wear. Many operators use flange or rail greasing to ease the passage of wheels on curves.

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