Electric overhead traveling cranes or EOT cranes are a common type of overhead crane, also called bridge cranes. They consist of parallel runways, much akin to rails of a railroad, with a traveling bridge spanning the gap.EOT cranes are specifically powered by electricity.

The double-girder bridge crane has superior performance, compact structure, light weight, reliability and operation, and can meet various working conditions.

The parts of bridge cranes that need lubrication and commonly used lubricants are described in the following sections.