Lignum Vitae has a self-lubricating resin that makes it perfect for hydroelectic turbine bearings. https://www.hydroworld.com/articles/hr/print/volume-32/issue-

Lignum Vitae has a self-lubricating resin that makes it perfect for hydroelectic turbine bearings. https://www.hydroworld.com/articles/hr/print/volume-32/issue-4/cover-story/bearings---seals--wood-makes-a-comeback-for-hydroelectric-turbin.html https://www.hydroworld.com/articles/hr/print/volume-32/issue...