Rail head

{
  "id": "MLC-T-IND-004666",
  "term": "Rail head",
  "field": "Industrial and trades",
  "definition": "The topmost part of a rail's cross-section, which makes direct contact with the wheels of rolling stock. This surface is hardened and profiled to withstand immense pressure, wear, and friction from train operations. The specific profile of the rail head, in conjunction with the wheel profile, dictates the contact geometry and steering behavior of the wheelset on the track.",
  "subject": "Rail equipment",
  "translations": {
    "de": "Schienenkopf",
    "es": "cabeza de carril",
    "fr": "champignon de rail"
  },
  "url": "https://mlchart.com/terminology/industrial/rail-head/"
}