Accession Number:

AD0921308

Title:

Water-Resistant Greases for Submerged Sliding-Contact Surfaces.

Descriptive Note:

Research and development rept.,

Corporate Author:

DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER ANNAPOLIS MD

Report Date:

1974-08-01

Pagination or Media Count:

32.0

Abstract:

The development of methods and apparatus for evaluating greases as lubricants for sliding-contact bearings in underwater environments are described. Results of examining 43 selected greases indicate that those containing base oils of higher viscosity are more resistant to water wash off, and develop higher torques between sliding-contact surfaces at low temperatures, than greases containing oils of lower viscosity. On the basis of the results, it is recommended that greases be evaluated for their capability of generating torques not to exceed 6250 g-cm 0.0625 N.m at temperatures as low as -30 F -34.4 C and not to exceed a weight-loss maximum of 30 and an average of 15 weight loss when subjected to the procedures described. Author

Subject Categories:

  • Lubricants and Hydraulic Fluids
  • Submarine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE