Encyclopedia > Lubricant

  Article Content

Lubricant

A lubricant is a substance introduced between two surfaces to lessen the friction between them. Lubricants have been used since prehistoric times, for example on wheel axles, and see extended use in many industrial applications.

Common lubricants include:

Another way to reduce friction is to use a ball bearing, which at the time of its invention was revolutionary. An air cushion can also be used to reduce friction.



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Paper clip

... without tangling have been difficult to improve on. Recent innovations include multi-colored plastic-coated paperclips and spring-fastened binder clips. A ...