INVESTIGATION OF FREIGHT CAR JOURNAL BEARING AND JOURNAL BOX SURFACE TEMPERATURES IN CONNECTION WITH HOT BOX DETECTORS

Laboratory and field tests are described for the Servo Hot Box Detective Unit, which is a track side installation. Some of the conclusions follow. Box surface temperature decreases approximately 0.6 degrees F for each 1.0 degrees F decrease in ambient temperature while the bearing temperature remains constant. The bearing temperatures increase more rapidly than the related box surface temperatures. The box surface temperatures do not always indicate that certain conditions are causing rapid increases in bearing temperatures. Operating conditions, such as restricted speeds, stops, etc., prior to trains passing over hot box detectors decrease the possibility of true hot box conditions being detected. It was recommended that the Servos be adjusted for changes in seasonal ambient temperature. Also it is suggested that the relocation of the sensor be studied.

  • Corporate Authors:

    Penn Central Transportation Company

    Transportation Center, 6 Penn Center Plaza
    Philadelphia, PA  USA  19104
  • Authors:
    • Pinney, M A
  • Publication Date: 1962-1-15

Media Info

  • Features: Figures; Photos;
  • Pagination: 45 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00040132
  • Record Type: Publication
  • Report/Paper Numbers: Test Rpt
  • Files: TRIS
  • Created Date: Jul 8 1994 12:00AM