PREVENTION OF ROLLER BEARING-INITIATED BURNOFFS IN RAILROAD FREIGHT CAR JOURNALS

The objective of this program was to determine the technical feasibility and cost effectiveness of constructing three separate devices for the prevention of catastrophic roller bearing-initiated, railroad journal failure. 1. Construction of a low cost axle cap bolt which would replace one of the three bolts in a standard bearing assembly, and which would contain a self-powered, maintenance free transmitter to signal a train crew in the event of roller bearing overtemperature, was proven feasible. This is technically and economically superior to current wayside temperature sensing devices, and has the capability of preventing burnoffs associated with bearing failure by any mechanism. 2. The prevention of bearing overlubrication by use of automated ultrasonic test methods was seen to be feasible. Use of such a device in a railroad repair track would prevent regreasing a freshly greased bearing and thereby save the costs of setouts and derailments caused by overlubrication. 3. The early detection of bearing component damage (spalling, brinelling, and particulate contamination) by use of "Shock Pulse Analysis" techniques was also seen to be feasible. Use of an automated device in a railroad wheel shop could save the costs of burnoffs associated with progressive damage, and also of investigative bearing teardown as a result of derailment.

  • Record URL:
  • Corporate Authors:

    SKF Industries, Incorporated

    Technology Services Center, 1100 First Avenue
    King of Prussia, PA  United States  19406

    Federal Railroad Administration

    Office of Research and Development, 1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    Transportation Systems Center

    55 Broadway, Kendall Square
    Cambridge, MA  United States  02142
  • Authors:
    • Allen, G E
    • Lucas, J R
    • Tomlinson, F H
  • Publication Date: 1979-1

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 284 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00196981
  • Record Type: Publication
  • Report/Paper Numbers: FRA/ORD-78-16 Final Rpt., DOT-TSC-FRA-79-5
  • Contract Numbers: DOT-TSC-935
  • Files: TRIS, USDOT
  • Created Date: Aug 28 1979 12:00AM