HYDRODYNAMIC LUBRICATION OF LIP-TYPE SEALS WITH SHAFTS SUBJECTED TO VIBRATORY PEENING

Experimental studies and production experience show that a groove is often worn under the working edge of the lip of a seal on a shaft. The high frictional temperature (120-160 degree C) and the action on oil and rubber of soluble iron salts formed in the gap cause oxidative wear of the rubbing surfaces. Consequently, the life of a lip-type seal depends on the presence of a lubricant film between the frictional surfaces. When this film has been destroyed shaft and seal wear rates increase. If microasperities are formed on a surface the tips of which act as elementary hydrodynamic wedges, oil films in sealing assemblies are thicker. Experiments have confirmed the effectiveness of lubrication by 'microasperities'. In order to produce on the shaft surface a microrelief that consists of asperities equally orientated to the left and right of the helical line, a fixture is developed for multiple-ball vibratory peening and also a procedure for calculating the operating conditions.

• Corporate Authors:

  Engineering Research Association

  Melton Mowbray
  Leicestershire,   England 
• Authors:
  • Snegovskii, F P
  • Tyurin, Y N
• Publication Date: 1976

Media Info

• Features: References;
• Pagination: p. 23-26
• Serial:
  • Russian Engineering Journal
  • Volume: 56
  • Issue Number: 1
  • Publisher: Engineering Research Association

Subject/Index Terms

• TRT Terms: Excavation; Films (Coatings); Hydrodynamics; Lubricating oils; Lubrication; Sealing (Technology); Seals (Devices); Shaft sinking; Shafts (Machinery); Viscosity
• Old TRIS Terms: Microasperities; Seal lubrication; Shaft seals; Thick films
• Subject Areas: Hydraulics and Hydrology; Marine Transportation;

Filing Info

• Accession Number: 00163071
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Oct 13 1977 12:00AM