Elimination of freight car hot boxes is discussed as a result of experience on the New York Central during 1948-1949. The cars used has steel wheels, 5.5 times 10 in. journals, axleboxes fitted with tight lids, deflector strips, packing retainer springs, and drawgear protected by rubber pads. Maximum load on a bearing area in any axlebox could not exceed 199.2 lb. per sq. in. Based on the experience, the following was recommended: a packing retainer should be installed in every axlebox which would be capable of holding the packing in place under impact; journal box lids and dust guards should be kept as tight as possible, and suitable methods used to ensure that water and dirt are kept out of axleboxes; and defective wagon wheels should be replaced at the earliest possible moment. As longer-range measures, redesign of journals and bearings to reduce unit bearing pressures, of axles and axleboxes to eliminate collars on journals, and of frames and drought years of cars to minimize the effects on journal boxes of impacts between cars is suggested.

  • Corporate Authors:

    Temple Press Limited

    161-166 Fleet Street
    Longon EC4,   England 
  • Publication Date: 1950-5-12

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00037896
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 8 1994 12:00AM