Generic Wheel/Rail Profiles for Commuter Railroads

The Office of Research and Development of the Federal Railroad Administration (FRA) sponsored a program to develop improved wheel and rail profiles specifically for commuter systems. The National Research Council Canada (NRCC) designed wheel profiles improve on the existing profiles of many railroads by: Implementing a 75-degree wheel flange angle to minimize the potential for wheel-climb derailment. Adopting a shape similar to that generated by averaging the thousands of worn wheels analyzed in this program. Both 1:40 and 1:20 thread taper variants are provided. A set of five generic rail templates have also been designed for good compatibility with the NRCC-COM40 wheel. A key goal of these rail profiles is to spread out wear on the wheel to help it retain its favorable shape, at the same time controlling contact stress and wear.

  • Corporate Authors:

    Association of American Railroads

    Transportation Technology Center, P. O. Box 11130
    Pueblo, CO  United States  81001

    Federal Railroad Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Publication Date: 2008-8


  • English

Media Info

  • Media Type: Print
  • Pagination: 5p

Subject/Index Terms

Filing Info

  • Accession Number: 01142499
  • Record Type: Publication
  • Report/Paper Numbers: DOTFRA-RR08-20
  • Files: TRIS, USDOT
  • Created Date: Oct 22 2009 5:43PM