Gears transmit and transfer energy. They are being applied in all industrial branches. In their operation the lubricant plays a decisive part. It is a major construction element and underlies ever increasing demands, especially if used in modern gears. For toothings and bearings of highest surface quality in particular, ADDINOL has developed a completely new gear oil in close co-operation with leading gear manufacturers. ADDINOL Eco Gear W with the innovative "Advantec Formula" is proven to increase both the efficiency of gears and the overall energy efficiency.

More compact designs, reduced oil volumes and increasingly improved surface qualities place growing requirements on the gear oils. Still, they influence performance and capacity of the whole plant. As the lubricant is an important construction element of the gear, ADDINOL Eco Gear W has been developed in close co-operation with leading gear manufacturers. The result is a high-performance gear oil with advantages perfectly tailored to the requirements of the operators:
- maximum energy efficiency
- reliable application also at extreme sub-zero temperatures
- excellent air and water separation.

Maximum energy efficiency

With its innovative "Advantec-Formula" ADDINOL Eco Gear W protects toothings and bearings of highest surface quality. The formula achieves reduced friction between friction pairings. This in turn reduces power loss and increases the efficiency of the gear. The gear operates at maximum energy efficiency.

The friction reducing effect of the "Advantec Formula" also lowers oil sump temperature which has positive results on the operating life of the gear oil. The ageing process of an oil filling is strongly influenced by its service time and by thermal loads. The valid rule of thumb says: with increasing temperature oil ageing is doubled with every 10 °C. This means, every single degree by which oil sump temperature is decreased, counts! With ADDINOL Eco Gear 320 W oil sump temperature is reduced by 4 to 5 °C compared to other synthetic high-performance gear oils.

Fit also at lowest temperatures

When developing the ADDINOL Eco Gear W excellent low-temperature behaviour was a further requirement. This objective was achieved by a novel combination of carefully selected synthetic base oils. ADDINOL Eco Gear W is free of viscosity-index-improvers based on organic polymers and still possesses a superior viscosity index (ADDINOL Eco Gear W in viscosity grade 320 for instance has a viscosity index of 181). The pour point of ADDINOL Eco Gear W is lower than the pour point of conventional industrial gear oils; here ADDINOL Eco Gear 320 W for example displays the value of -51 °C. Concerning low-temperature behavior ADDINOL Eco Gear W outperforms common synthetic gear oils clearly and extends effective operating area by at least 5 °C at sub-zero temperatures which is a valuable advantage especially for the application in gears operating at extreme cold or starting after long downtimes.

No chances for air, foam and water

During operation the agitation and aeration of the lubricant is unavoidable. The fine air bubbles must be separated and released from the oil quickly. In the air separation test ADDINOL Eco Gear W achieves best results. The release of introduced air causes foam on the lubricant’s surface which is minimised for ADDINOL Eco Gear W by the help of special inhibitors and carefully selected base components. Even under the impact of water or heavy contamination a heightened foam formation is prevented effectively. In the Flender foam test ADDINOL Eco Gear 460 W achieves best results and its volume increase amounts to 6 % maximum. Apart from excellent an air separation ADDINOL Eco Gear W also achieves an outstanding separation of water and this way reduces the danger of corrosion in the gear box.

The innovative high-performance gear oil ADDINOL Eco Gear W is available in the following viscosity grades: 150, 220, 320, and 460. It is highly suited for gears at highest specific strains at friction pairings, dynamically changing loads as well as critical thermal conditions at bearings and toothings. ADDINOL Eco Gear 320 W is the ideal lubricant for modern gears in wind turbines.