Lubrication is vital to achieving proper life for bearings. In applications such as furnaces, ovens, or high-temperature fans and blowers, bearings may be exposed to higher-than-normal temperatures. Other areas include steel mills and foundry equipment such as continuous casters and roll-out tables, as well as dryers, electric motors and generator sets. In these applications, proper lubrication selection is even more important. There are two types of lubricants that are suitable for high-temperature use. One is traditional grease lubrication, and the other is an oil system. Oil systems can be static or circulating. Operating temperatures are one of the major considerations when selecting the method of bearing lubrication and determining the grade of oil or grease.