MATERIAL TESTING OF WHEELSET ROLLER BEARINGS--PROOF OF QUALIFICATION AND FAILURE

WERKSTOFFPRUEFUNG AN RADSATZ-ROLLENLAGERN. ERKENNTNISSE AUS BEWAEHRUNG UND VERSAGEN

Although the wheelset roller bearings normally in use on Deutsche Bundesbahn's (DB) stock have proved satisfactory--the annual number of hot-boxes amounts to about 0.00001 of the total stock--even isolated failures must be checked up on account of the strict safety requirements to be observed in railway operation. During the past 15 years, bearing failures have been experienced, for instance, due to damaged cages, loosening of the inner races, chipping of the track for the outer and inner rings and incorrect assembly. The extraordinary small number of hot-boxes still being experienced could be even further reduced if improved and more precise methods would be applied for testing the bearings and their assembly. Life estimates account only for the destruction of the materials. The useful life is, however, also reduced by wear, high or unexpected stresses, faults in manufacturing or mounting as well as by mismatch or unsuitable treatment of the components. To account for the effect of the longer bearing life and the partly higher loading, the influences acting on the bearings must be systematically investigated and criteria established, permitting the end of the useful life to be defined.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0373322X
• Corporate Authors:

  Siemens (Georg) Verlagsbuchhandlung

  Luetzowstrasse 105-196
  1 Berlin 30,   Germany 
• Authors:
  • Egelkraut, K
• Publication Date: 1977-5

Language

• German

Media Info

• Pagination: p. 129-136
• Serial:
  • Glasers Annalen ZEV
  • Volume: 101
  • Issue Number: 5
  • Publisher: Siemens (Georg) Verlagsbuchhandlung
  • ISSN: 0373-322X

Subject/Index Terms

• TRT Terms: Journal bearings; Journal boxes; Reliability; Roller bearings; Service life; Test facilities; Testing
• Old TRIS Terms: Hot boxes
• Subject Areas: Design; Railroads;

Filing Info

• Accession Number: 00164410
• Record Type: Publication
• Source Agency: British Railways
• Files: TRIS
• Created Date: Nov 9 1977 12:00AM