High Horsepower and High Torque Performance of EP Gear Lubricants |
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Authors: | R. K. Nelson L. J. Valentine |
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Affiliation: | 1. Axle Division , Eaton Manufacturing Co. , Cleveland, Ohio;2. Eaton Manufacturing Co., Axle Division , Cleveland, Ohio |
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Abstract: | In recent months a series of premature gear failures in field operated vehicles produced indications of insufficient load carrying qualities in extreme pressure lubricants of the GL-4 specification conforming to the new Military L-2105A. This condition prompted dynamometer testing in an investigation of horsepower absorption and high torque absorption of these lubricants as compared with extreme pressure lubricants conforming to Military L-2105 specifications. The results of the dynamometer testing showed that lubricants conforming to the new Military L-2105A were capable of withstanding continuous high horsepower applications where relatively low torque was required, but were not able to compare favorably with the extreme pressure lubricants of the Military L-2105A specification in regard to continuous high torque applications. The gear-tooth surfaces on such tests with lubricants conforming to the new Military L-2105A were severely scored, whereas the Military L-2105A lubricants produced a satisfactory tooth condition under identical testing conditions. |
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Keywords: | KEY WORDS Metallic Gas Seals Leakage Model Rarefaction Effects Contacting Rough Compliant Curved Surfaces |
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