On September 2nd 2016, Eureka wrote an article for Bearing that talks about how there is a research group that have used new technology to create a new type of coating technique that allows for bearings to be high performing. This technique includes using zinc oxide coating. Not only if this technology new, but it is also environmentally friendly. By incorporating this technique into its bearings, the research group has lowered friction coefficient by roughly one third while maintained the low frictional characteristics.
Eureka mentions that it has a main focus on reducing friction when creating this new technique. The zinc oxide is able to reduce friction as well as resist heat. This was discovered at the nano level of the chemical. Here is what Eureka had to say about the zinc oxide. “To address worsening global environment/energy issues, it is important to reduce friction occurring in drive mechanisms including engines in terms of energy saving. However, because the mechanically driven part in an engine becomes extremely hot, friction reduction technology applied in such an environment must also be heat resistant. The researchers focused on ZnO, capable of both reducing friction and resisting heat, and identified its friction reduction mechanism at the nano level. They then developed a basic technique to apply a low-friction ZnO coating by controlling the crystal orientation of ZnO.”
Once the zinc oxide was discovered as a possibility to reduce friction, the research team decided to apply this technique to commercially available high performance bearings. Some of these bearings were integrated into small get engines. By adding this commercially available high performing ball bearings, the small jet engine was able to reduce its fuel consumption by one percent.