WHEEL, AXLE, AND RAIL STRESS PROBLEMS RELATED TO HIGHER CAPACITY CARS--WHEEL PROBLEMS

Factors to consider in selecting a wheel for high capacity cars--aside from dimensional compatibility with the rail and truck, are wheel class, wheel diameter, and rim thickness. Rim thickness determines replacement period and is primarily a function of car utilization. Wheel diameter determines stress in the contact area of the wheel tread and rail. Wheel class determines relative resistance of wheels to wear and service damage, principally shelling and thermal cracking. Safety and economy of the operation depends largely on freedom from excessive shelling, thermal cracking, and rapid wear, all commensurate with the cost of new wheels, reconditioning, and maintenance.

• Supplemental Notes:
  • Panel Symposium, the ASME Railroad Division November 21,1963
• Corporate Authors:

  American Society of Mechanical Engineers

  Two Park Avenue
  New York, NY  United States  10016-5990
• Authors:
  • Johnsen, A M
• Publication Date: 1963-11-21

Media Info

• Features: Tables;
• Pagination: 5 p.

Subject/Index Terms

• TRT Terms: Axle load force; Cracking; Defects; Freight cars; Hardness; Railroad rails; Shelling (Metals); Size; Stresses; Technology; Thermal degradation; Wear; Wheel loads; Wheel rims; Wheels
• Geographic Terms: United States
• Old TRIS Terms: Axle loadings; Rail stress; Shelling; Shelling (Wheels); Thermal cracks; Thermal cracks (Wheels); Wheel defects; Wheel size
• Subject Areas: Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00040222
• Record Type: Publication
• Report/Paper Numbers: Conf Paper
• Files: TRIS
• Created Date: Jul 8 1994 12:00AM