单排四点接触球式回转支承结构紧凑，承载能力较好，刮泥机采用此系列回转支承用于连接固定桥架和悬架，通过驱动装置驱动齿圈带动悬架转动，将池底污泥刮除。
Single Row Four Point Contact Ball Slewing Bearing is designed in compact structure and good load performance. The mud scraper is using this series of slewing bearing for connecting fixed axle and suspension, driving device drives the gear ring and suspension to scrap the mud.
