Biodegradable Gear Oil : Klüber introduces biodegradable gear oil for thrusters and rudder propellers
Klüber Lubrication of Munich, Germany, which specializes in lubricants tailored to special duties such as process gas compressors and marine applications, has launched a biodegradable lubricant specifically engineered for thrusters and rudder propellers. The Klüberbio EG 2-150 has been designed to be an eco-compatible alternative to mineral oil.

Klüber cooperated closely with its affiliate companies SIMRIT and Merkel Freudenberg, both suppliers of shaft seals and profiled seals to the maritime industry, in the development of the Klüberbio EG 2-150. As marine traffic is increasing, oil losses from the water-side propeller shaft seals, as well as oil leakages due to normal wear, accidents or operating errors, are becoming a growing threat to the environment.

Ship operators have been calling for an eco-compatible product that could replace commonly used minral oil-based lubricants. The Klüberbio EG 2-150 features a biodegradability of at least 60% after 28 days, according to Organisation for Economic Co-operation and Development (OECD) 301 F tests, and is nontoxic to marine organisms (OECD 201, 202 and 203 tests). The Klüberbio EG 2-150 has a high scuffing resistance, protecting gear teeth reliably against fretting damage even at high peak loads. According to the company, it has a longer service life than mineral oils, offering good stability toward aging, oxidation and hydrolysis.

Oil changes are required less often, the company said, enabling a reduction of maintenance and disposal costs. Due to its favorable viscositytemperature behavior, as well as low- and high-temperature characteristics, Klüberbio EG 2-150 can be used over a wide temperature range.


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