Vegetable-based oil as a gear lubricant

B. Kržan, J. Vižintin

Gear technology 20 (2003) 28–33.


Universal tractor transmission oil (UTTO) is multifunctional tractor oil formulated for use in transmissions, final drives, differentials, wet brakes, and hydraulic systems of farm tractors employing a common oil reservoir. In the present work, the gear protection properties of two formulated vegetable-based UTTO oils, one synthetic ester-based UTTO oil, one synthetic ester gear oil, and one mineral-based UTTO oil are investigated. The data, presented in this paper, have demonstrated that the formulated vegetable-based UTTO oils have high lubricity, high viscosity indexes and provide equivalent or - in some aspects - superior gear protection performance compared with the mineral-based UTTO oil. The high-oleic sunflower oil formulation derived from the genetically modified plant has shown better results than the rapeseed-based (canola-based) oil formulation.

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