The TINY Area Where Train Wheel Meets the Railway Track | The Wheel Rail Interface Explained

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The entire weight of a train—sometimes thousands of tonnes—is supported on a contact patch smaller than your thumbnail. Welcome to the world of the wheel–rail interface, the most critical (and smallest) part of railway engineering.

In this video, I explain:

What the wheel–rail interface actually is

Why the shape of the wheel and rail matters for safe travel

How trains steer through curves without steering wheels

What happens when things go wrong (hunting, rolling contact fatigue, and more)

How engineers manage adhesion, wear, and maintenance

Want to find out more about Hunting? Check out this video👇👇👇
   • What Does Train Hunting Mean on the Railway?  

Find out about Angle of Attack here👇👇👇
   • Why Do Railway Engineers Worry a Lot About...  

Interested in the finding out more about rail defects? This is the video you need👇👇👇
   • Railway Rail Defects: A Guide to the Most ...  

For more on the Rails 👇👇👇
   • All Things Rails  

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Video Chapter's:
00:00 - Intro
00:42 - How the Wheel Rail Interface Works
05:08 - The Hidden Forces & How Trains Steer
08:10 - Problems That Arise
10:45 - Adhesion
12:35 - Maintaining the Interface