Procedure for qualifying synthetic base gear lubricant

Details Procedure for qualifying synthetic base gear lubricant Procedure for qualifying synthetic base gear lubricant

1990-05-22

1992-10-27

Myracle, Jerry W.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Lubricant testing

G01M 1302

Patent

active

051579634

ABSTRACT:
A procedure for qualifying a proposed synthetic lubricant includes: (1) compatibility testing the proposed lubricant with previously approved synthetic lubricants; (2) stability testing the lubricant for thermal oxidation by testing the lubricant in a heated gear box; (3) corrosion testing the proposed lubricant by a copper strip tarnish test; (4) field testing the proposed lubricant to evaluate the ability of the lubricant to withstand extended drain intervals while still performing its function; and analyzing all of the results of those tests. In another embodiment, the lubricant furthermore undergoes a seal life test to evaluate the appearance of various covers and seals for degradation due to long term exposure to the lubricant.

REFERENCES:
patent: 4007629 (1977-02-01), Hochstein
"Automotive Gear Lubrication: an Overview", Aug. 1985, vol. 93, No. 8, pp. 60-67.

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