49 CFR Part 238
§ 238.419 — Truck-to-car-body and truck component attachment
FRA Part 238 · Subpart E — Specific Requirements for Tier II Passenger Equipment. Full current text with cross-references on BuildSpec.
§ 238.419 Truck-to-car-body and truck component attachment. (a) The ultimate strength of the truck-to-car-body attachment for each unit in a train shall be sufficient to resist without failure the following individually applied loads: a vertical force equivalent to 2g acting on the mass of the truck; and a force of 250,000 pounds acting in any horizontal direction on the truck, along with the resulting vertical reaction to this load. (b) Each component of a truck (which include axles, wheels, bearings, the truck-mounted brake system, suspension system components, and any other components…
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