Abstract: The rotary kiln uses open girth gear transmitting motion and power, so to drive the kiln shell rotation. Reducing the work wear and prolong the service life of the girth gear and pinion is an important way to reduce operation and maintenance costs of the rotary kiln effectively. This article focuses on summarizing the basic wear form of kiln girth gear and pinion, concentrating on analyzing the reason of the scratched wear and discussing the influence of the hardness of gear surface, installation accuracy and lubricants quality on girth gear/pinion scratched wearing. And then the targeted solutions were put forward.
