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Flow Properties of Hypoid Gear Lubricants at Sub-Zero Temperatures
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English
Abstract
Tests were conducted throughout the temperature range of -65-0 F with a truck axle equipped with observation windows and temperature-measuring equipment. Twenty-one test lubricants encompassing a wide range of physical properties were employed in the investigation. Based upon this study, the flow characteristics of satisfactory sub-zero gear lubricants have been identified. Correlations of the truck axle flow results with several commonly specified tests for fluidity were attempted and discussed. The development of a small axle flow simulator is described, and its correlations with full-scale axle flow results are discussed.
Authors
Citation
Powell, D., "Flow Properties of Hypoid Gear Lubricants at Sub-Zero Temperatures," SAE Technical Paper 720151, 1972, https://doi.org/10.4271/720151.Also In
References
- MIL-L-10324A Military Specification “Lubricating Oil, Gear, Sub-Zero.”
- McClintock R. Osborne R. E. “The Effect of Lubricant Viscosity on Rear Axle Gear and Pinion Bearing Operation.” Lubrication Engineering October 1964 387 392
- Whyte R. B. Friend M. J. New L. D. “Development of a Specification for SAE 75 Grade Multi-Purpose Gear Lubricants.” National Research Council of Canada, Mechanical Engineering, Report MP-40
- MIL-L-2105B, Military Specification, Lubricating Oil, Gear, Multipurpose
- Canadian Government Specification, Board Specification 3-GP-340b, Lubricating Oil, Gear: Multipurpose, Grade 75
- Powell D. L. “Development of Test Methods for Sub Zero Gear Lubricants,” AutoResearch Laboratories Inc., Final Report, U.S. Army Contract, DAAD05-67-0358 August 1971