PROPOSED SOLUTIONS TO THE FREIGHT CAR TRUCK PROBLEMS OF FLANGE WEAR AND TRUCK HUNTING

This paper reports on the progress of a development program whose objective is to devise cost effective solutions to the problems of excessive flange wear and truck hunting. It is expected that later papers will deal with separate aspects of this program in greater detail. Three solutions for freight cars are proposed: (1) a retrofit steering assembly kit for application to the trucks of existing roller bearing cars, (2) modification of the side frame and bolster castings to incorporate a more cost effective steering assembly for new trucks and (3) a completely new truck design incorporating improvements in car suspension as well. All three designs include a steering feature which will reduce wheel and rail wear in curves and elminate truck hunting. The second and third designs also provide better brake shoe/wheel alignment for additional savings in wheel wear. The appendices define the terminology used and identify the design characteristics of conventional trucks which lead to the present high cost of ownership.

  • Supplemental Notes:
    • This paper was contributed by the Rail Transportation Division of the ASME for presentation at the Winter Annual Meeting, Houston, Texas, November 30-December 4, 1975.
  • Corporate Authors:

    American Society of Mechanical Engineers

    Two Park Avenue
    New York, NY  United States  10016-5990
  • Authors:
    • List, H A
    • Caldwell, W N
    • Marcotte, P
  • Publication Date: 1975-7

Media Info

  • Features: Appendices; Figures;
  • Pagination: 7 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00128632
  • Record Type: Publication
  • Source Agency: American Society of Mechanical Engineers
  • Report/Paper Numbers: 75-WA/RT-8
  • Files: TRIS
  • Created Date: Jan 14 1976 12:00AM