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Foaming Tester evaluates wind turbine gearbox lubricants.

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July 18, 2012 - Using the Flender Foaming Test procedure ISO/DIS 12152, Flender Foam Test measures and analyzes critical foaming and air release properties of wind turbine gearbox lubricants. Gear pair rotates in oil to be tested, thereby mixing air into the oil. This enables accelerated evaluation of how oil behaves with regard to absorption of air, oil-air dispersion, and surface foam at various temperatures.

Herguth Laboratories Introduces Addition of New Flender Foam Test

(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

Herguth Laboratories, Inc.
101 Corporate Place
Vallejo, CA, 94590

Press release date: July 1, 2012

Herguth Laboratories, the industry leader in specialized and innovative oil analysis and tribology testing is proud to announce the introduction of its new Flender Foam Test.

Critical foaming and air release properties of wind turbine gearbox lubricants are effectively measured and analyzed using the Flender Foaming Test procedure ISO/DIS 12152.

This new piece of equipment, quite rare in the United States, is an important development in the field. Excessive foaming and too slow of a release of dispersed air in gear oils have a negative influence on the load-carrying capacity of gears and bearings and causes low oil trips costing thousands of dollars if not corrected. Additionally, excessive foaming can result in oil leaking at shaft seals and breather screws. For this reason, gear oils should be checked for foaming characteristics and air release properties using an appropriate test method.

This is how the Flender Foaming Test works: A gear pair rotates in the oil to be tested and thus mixes air into the oil. In this way it is possible to rapidly evaluate how oil behaves with regard to the absorption of air, oil-air dispersion, and surface foam at various temperatures.

Herguth Laboratories, with offices in the Chicago and San Francisco areas, has a full complement of state-of-the-art testing equipment. All equipment is calibrated to the most demanding industry standards to provide customers with quality decision data. For more information about Herguth Laboratories, visit their website at or call 1-888-HERGUTH (1-888-437-4884)
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