STUDY OF HELICOPTER GEAR LUBRICATION.
Quarterly progress rept. no. 3, Sep-Nov 65,
SHELL OIL CO WOOD RIVER ILL RESEARCH LAB
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The report contains results of investigations along two lines 1 studies of the effects of pretreatments on the fatigue life of gears, and 2 exploratory tests to determine the effects of extreme pressure EP additives on the mechanisms of surface damage, particularly fatigue pitting, in sliding and rolling contacts. The pretreatments include the application of precoatings, polishing to reduce surface roughness, and tempering hardened gears to give a range of hardnesses. All gear tests were conducted at a pinion speed of 1600 rpm.
- Lubricants and Hydraulic Fluids