It is information that is dated by now. This will be of no use to the experts but for the newbies and the inquisitive it has some good information.
http://www.machinerylubrication.com/article_detail.asp?articleid=618&relatedbookgroup=Lubrication2
http://www.machinerylubrication.com/article_detail.asp?articleid=618&relatedbookgroup=Lubrication2