Geckos, it would seem, can just about stick to anything.
Well, researchers at the University of Akron decided to see what kind of surfaces geckos can cling to, and Teflon, or Polytetrafluoroethylene PTFE as engineers prefer to call it, was one of their tests. Their answer was surprising: geckos cannot cling to dry PTFE (wet PTFE is another matter altogether). Some people say that PTFE is the only dry surface that a gecko cannot cling to but why?
INTRODUCTION:
Self-lubricating bearings are an excellent choice for a variety of applications. They outperform other types of bearings in environments that are dirty or involve higher temperatures, handle high load capacities, and require less maintenance.
There are three types of self-lubricating bearings: oil-impregnated sintered metal, self-lubricating metal-polymer, and lubrication-free solid polymer.
Here are additional list blog posts here at Advanced EMC Technologies on Polymer Bearings: