Fatigue Life of 120-mm Bore Ball Bearings at 600 deg F with Fluorocarbon, Polyphenyl Ether, and Synthetic Paraffinic Base Lubricants.

Abstract

Groups of 120-mm bore angular-contact ball bearings made from AISI M- 50 steel were fatigue tested at a temperature of 600 deg F (588 K) and a speed of 12 000 rpm with a synthetic paraffinic oil, a fluorocarbon, and a 5P4E polyphenyl ether. Under a low oxygen environment, the synthetic paraffinic oil and the fluorocarbon gave bearing lives approximately 14 and 3 times AFBMA-predicted (catalog) life, respectively. With the poly-phenly ether, bearing life was less than AFBMA-predicted (catalog) life in an air environment. For the synthetic paraffinic oil and the fluorocarbon, bearing fatigue was subsurface initiated. For the polyphenyl ether, bearing failure was mainly from surface distress, wear, and superficial pitting.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1968
Accession Number
ADA309442

Entities

People

  • Eric N. Bamberger
  • Erwin V. Zaretsky
  • William J. Anderson

Organizations

  • General Electric

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Additives (Chemicals)
  • Antioxidants
  • Atmospheres
  • Ball Bearings
  • Bearings
  • Diagrams
  • Elements
  • Ethers
  • Fatigue Life
  • Foaming Inhibitors
  • Heat Transfer
  • High Temperature
  • Jet Engines
  • Materials
  • Schematic Diagrams
  • Test Facilities
  • Turbines

Readers

  • Polymer Science and Engineering.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).