Accession Number:

ADA273633

Title:

Investigation of the Ultrafiltration Technique Using Military Greases

Descriptive Note:

Final rept.

Corporate Author:

ARMY BELVOIR RESEARCH DEVELOPMENT AND ENGINEERING CENTER FORT BELVOIR VA

Personal Author(s):

Report Date:

1993-10-01

Pagination or Media Count:

22.0

Abstract:

Solid particle contamination in a grease intended for lubrication of instrument precision bearings can seriously degrade grease performance and bearing life. To produce clean grease, an ultrafiltration technique was recently introduced into the instrument bearing community. A major potential benefit by using this technique is that many instrument greases can be remanufactured from a variety of readily available lubricating greases. To assess this technique, an investigation was conducted to determine 1 whether the physical and chemical properties of filtered greases are altered by the filtration process, and 2 whether the filtered greases can improve instrument bearing life and their tribology properties. Results indicated that ultrafiltration can be performed on various types of greases with a substantial improvement in the resultant cleanliness level. However, some greases with rigid, discrete thickeners, and solid additives are unlikely candidates for ultrafiltration due to their physical characteristic changes after filtered. Lubricating greases, Grease filtration technique, Precision instrument bearings

Subject Categories:

  • Lubricants and Hydraulic Fluids
  • Machinery and Tools
  • Pumps, Filters, Pipes, Tubing, Fittings and Valves

Distribution Statement:

APPROVED FOR PUBLIC RELEASE