The word “sustainability” is on everyone’s lips today, especially in the top floors of politics and business. The paper demonstrates the important impact lubricants and lubrication have on sustainability.
Sustainability is a fundamental principle of life to ensure the existence (of our planet, and that of companies and human beings) in the long term. Therefore, sustainability is increasingly coming into focus.
Sustainability leads away from a pure “action for action” approach towards to a holistic and long-term view of processes.
Sustainabiliy, friction and wear
A study, done by the German Society for Tribology /1/ shows the influence of friction, lubrication and wear on sustainability. To keep it simple, here 2 key factors for hat:
• Energy saving by minimisation of friction losses
• Material savings by longer service life of components, machines, and systems
The savings potential of a 1% reduction in friction and wear is estimated at 32.7 billion euros for Germany alone /1/.
However, thinking only about the (imperative!) more sustainable design and operation of new machines and plants, e.g., through alternative energy sources, energy recovery or lower-friction and more wear-resistant materials, including the lubricants, is not sufficient. With other words: A big part of sustainability would be given away if there is no “thinking beyond”.
The additional potential to increase the sustainability by professional machine lubrication becomes clear when we change our perspective to the causes of failure of machine elements or components. Here 2 examples:
• 80% of rolling bearing failures are directly related to the lubricant or contaminants (Fig. 1, /2/)
• 80% hydraulic pump failures are caused during operation (and not by mistakes in design, production or assembling), /3/
It becomes clear that the service life and reliability of modern machines are significantly impaired by inadequate maintenance and lubrication tasks, with a direct impact on the profitability of the company.
Figure 1: Causes of failure for rolling bearings /2/
Most of these failures can be avoided (or detected at an early stage) by implementation of simple rules.
The paper presents, why these tasks itself have to become sustainable and how this can be done, implemented in a concept that is tailored to the plant and its operation and not as one-off “fire fighter actions”.
Included examples from daily work demonstrate how to do this.
References:
[1] German Society of Tribology: Tribology in Germany.
Interdisciplinary technology for the reduction of CO2 -emissions and the conservation of resources.
[2] Schaeffler Technologies AG, TPI 176 „Lubrication of Rolling Bearings“, 2013
[3] Totten, G.E.: Handbook of Hydraulic Fluid Technology,
CRC Press, 2011