Press releases

Reliable and eco-friendly

September 03. 2010

Reliable and eco-friendly

New readily biodegradable gear oil for thrusters and rudder propellers

Munich, September 2010 – Klüberbio EG 2-150 is a readily biodegradable gear oil launched by Klüber Lubrication especially for use in thrusters and rudder propellers. With this synthetic ester oil, Klüber has succeeded in developing an eco-compatible alternative to mineral oil which at the same time offers the reliability required for these gears with their taxing lubrication requirements. A leading global manufacturer of propeller shaft seals subjected Klüberbio EG 2-150 to a dynamic endurance test, which it passed successfully.

Oil loss via the water-side propeller shaft seals as well as oil leakage due to normal wear, accidents or operating errors are becoming a growing threat to the environment as marine traffic is increasing. Ship operators have therefore been calling for an eco-compatible alternative to the currently used mineral-oil-based products for several years. The biodegradability of Klüberbio EG 2-150 is at least 60 per cent after 28 days (tested acc. to OECD 301 F), and it is not toxic to marine organisms (OECD 201, 202 and 203 tests).

Klüberbio EG 2-150 has a high scuffing resistance, protecting gear teeth reliably against fretting damage even at high peak loads. It has a longer service life than mineral oils owing to its good stability towards ageing, oxidation and hydrolysis. Consequently, oil changes are required less often, enabling a reduction of maintenance and disposal costs. Due to its favourable viscosity-temperature behaviour as well as high- and low-temperature characteristics, Klüberbio EG 2-150 can be used over a wider temperature range than conventional gear oils based on mineral oil.

In the development of this new readily biodegradable special oil, Klüber cooperated closely with its affiliated companies SIMRIT and Merkel Freudenberg, both leading suppliers of shaft seals and profiled seals to the maritime industry. Like Klüber Lubrication, these two companies belong to the Freudenberg Group. Together, the three companies are therefore in a unique position to match elastomers and lubricating oils for the taxing requirements of propeller and thruster manufacturers and shipowners.

About Klüber Lubrication

Klüber Lubrication München based in Munich is one of the world's leading manufacturers of speciality lubricants. Klüber Lubrication offers competent tribological solutions by supplying tailor-made speciality lubricants directly to customers in almost all branches of industry and markets. Klüber Lubrication supplies more than 2,000 speciality lubricants, most of them developed and manufactured for specific customer requirements. With its thorough consulting and far-reaching services, the company has acquired an excellent reputation as a partner to trade and industry. More than 80 years of experience, industry-specific know-how, all common certificates and a test bay that is fairly unique in the industry all help to safeguard optimized solutions. Klüber Lubrication München belongs to Freudenberg Chemical Specialities, also based in Munich, a subgroup of the Freudenberg Group of Weinheim.