Optimizing Lubricant Properties

The ability of a traction drive fluid to provide lubrication even at low temperatures is a critical property. At a certain temperature, a fluid will stop flowing, called its pour point. A lower pour point thus means the fluid will operate in colder conditions. With traction drive fluids, however, a lower pour point translates into a lesser traction force. While advances in synthesis technology does enable us to lower the pour point somewhat while maintaining the traction force, balancing the two properties remains a delicate task.

This graph below shows the relationship between the traction coefficient and the low-temperature fluidity for traction drive fluids that Idemitsu has synthesized over the past three decades.

Optimizing TDF Properties

The points on the scatter chart indicate new traction drive fluids Idemitsu has developed over to the years as shown in the legend. Through our continuous efforts, we have improved the pour point over time and continue to discover new chemicals with improved performance.

In working with such new chemicals, Idemitsu has succeeded in synthesizing base oils for use in a traction fluid that reach the theoretically optimal limit, the second generation numbers in the graph.

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