SPRING WASHERS FOR RAIL FASTENINGS

Single, double, and triple spring washers have been used for several years by a number of main-line railways carrying heavy traffic, and the three standard forms of Vossloh precision-made types are known as Fe7, Fe6, and Fe19 respectively, and all with cross-sections of 10 mm, by 6 mm, and suited to 7/8 in. dia. screws. Characteristics of these three types of spring washers are shown. With an initial tension of 2 tons, an extra load Delta Z of one ton brings spring movements of 0-15, 0-13, and 0-60 respectively for the single double and triple washers, i.e.: ratios of 1:2:4. On this basis the Fe7 single washer is used where track conditions and loading lead only to low working deflections in the fastening assembly; the triple-coil washer Fe19 is used when high values of Delta f are found and the double-coil Fe6 under average conditions. An engineering physics analysis of spring dynamics is also given.

• Corporate Authors:

  Temple Press Limited

  161-166 Temple Press Limited
  London EC4,   England 
• Publication Date: 1961-9-29

Media Info

• Features: Figures;
• Pagination: p. 361-66
• Serial:
  • RAILWAY GAZETTE
  • Volume: 115

Subject/Index Terms

• TRT Terms: Deflection; Fastenings; Railroad rails; Spring; Technology
• Uncontrolled Terms: Spring washers
• Geographic Terms: United Kingdom
• Old TRIS Terms: Spring deflection
• Subject Areas: Materials; Railroads;

Filing Info

• Accession Number: 00037273
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 4 1994 12:00AM