The University of Illinois Engineering Experimental Station has recently undertaken research into the behavior in service of solid journal bearings; and hot box incidents with relative costs. The greater number of hot boxes occurs within relatively short distances of the point of origin, which suggests that minor defects may be present in the axleboxes of empty stock which cause overheating when the wagon is loaded. Shunting operations may set up conditions which result in overheating, waste grabbing, and so on resulting from the wagon being stationary for some time. On a wagon being moved after standing for a period in a low temperature, there was a tendency for the packing to stick to the journal, and to move to a position from which it could not properly feed oil from the bottom of the axlebox to the journal surface. It is further found during the course of the investigations that the effect of summer temperatures on hot box occurrence was not in all cases due to the immediate elevation of the running temperature of the bearing, but in a large measure arose from the corollary effects on the lubricating materials used in the bearings.

  • Corporate Authors:

    Temple Press Limited

    161-166 Fleet Street
    Longon EC4,   England 
  • Publication Date: 1953-7-10

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  • Accession Number: 00039550
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 8 1994 12:00AM