Evaluation of Navy 9 cst Oil in Bell Helicopter M412 HP Gearboxes

Abstract

Tests were conducted with 5 and 9 centistoke lubricants in three different helicopter gearboxes, a main transmission, a 42' gearbox and a tailrotor gearbox. The objective of the tests was to observe and measure the difference in the performance of the lubrication systems due to the viscosity difference between the two test lubricants. The 9 centistoke oil has been developed to provide higher component film thickness, increased load carrying capacity and improved corrosion resistance which will provide increased life for drive system gears and bearings.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1998
Accession Number
ADA351965

Entities

People

  • S. H. Zachary
  • William R. Stapper

Organizations

  • Bell Flight

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Aircrafts
  • Bypass Valves
  • Corrosion
  • Corrosion Resistance
  • Flow Rate
  • Heat Exchangers
  • Helicopters
  • Lubricants
  • Lubrication
  • Oil Coolers
  • Oil Filters
  • Payload
  • Pressure Distribution
  • Pressure Regulators
  • Relief Valves
  • Tail Rotors
  • Test And Evaluation

Readers

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