Dual Diameter Roller Bearing - 3.5 Million DN-600 F

Abstract

Five gas turbine engine mainshaft roller bearing configurations were investigated for capability of sustained performance at DN values (Bore in mm x Speed in RPM) from 2 million to 3.5 million and normal operating temperatures to 600F. A unique Dual Diameter Roller was selected for the final analysis of stress and lubrication parameters, design and fabrication. A 140 mm Bore Dual Diameter Roller Bearing operated successfully for 30 min. continuous operation at 25,000 RPM (3.5 million DN) with stabilized outer race temperatures above 525F. Lubrication was with Polyphenyl Ether 5P4E in an air environment.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1973
Accession Number
AD0760563

Entities

People

  • David Gubernick
  • Edmund Filetti
  • James Dunfee
  • John Rumberger

Organizations

  • Franklin Institute

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Bearings
  • Boundary Layer
  • Energy Transfer
  • Fabrication
  • Fluid Dynamics
  • Fluid Mechanics
  • Friction
  • Gas Turbines
  • Geometry
  • Heat Transfer
  • Lubricants
  • Lubrication
  • Mechanics
  • Plastic Explosives
  • Roller Bearings
  • Steady State
  • Turbines

Readers

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