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Development of a Variable-Severity Scoring Test for Hypoid Gear Lubricants
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1972 by SAE International in United States
Annotation ability available
The presently used laboratory hypoid gear scoring tests are described and the deficiencies are noted. The inadequacies of these tests led to the development of a test device and a procedure designed to evaluate gear lubricants more accurately. An account of the development of the test system with the cooperation of the Coordinating Research Council, Inc. (CRC) is given. The unique design features of the gearbox and the test gears are described.
An account is given of the steps in the test development and the use of the CRC reference oils in this development. The test is capable of evaluating the scoring resistance of hypoid gear oils covering a range of performance levels from RGO 104 to RGO 110. Data on repeatability are presented.
CitationSchenk, A., Powell, D., and Barton, H., "Development of a Variable-Severity Scoring Test for Hypoid Gear Lubricants," SAE Technical Paper 720152, 1972, https://doi.org/10.4271/720152.
- “Laboratory Performance Tests for Automotive Gear Lubricants Intended for API GL-4, GL-5 and GL-6 Service.” ASTM Research Report RR25: D2 1971
- Brandow W. C. Sands T. P. Streets R. E. “Development of Gear Lubricant Test Technique by the Coordinating Research Council.” Institute of Petroleum Symposium on Gear Oils Brighton, England October 1964