<http://schema.org/description>
"Conventional wisdom has it that grease lubrication is fine for grinding spindles so long as speeds stay fairly low. As speed approaches 10,000 to 15,000 rpm, however, then heat becomes a major problem, leaving little choice but to go to an oil-and-air mist system."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mmsonline.com/articles/grinding-spindles-take-grease-to-higher-speed>