DG DA multistage pump shaft Wawa surface scraping steps: 1, coarse scratch: Sanjiaoguadao with positive rake angle with scrapers. Will significantly raised portion scrape; then coated display agent DG8567 bearing on spherical bush, requiring less thin, evenly spread a layer; tile and then spherical hollow shaft ball bearing journal grinding pump repairs, tile and spherical observation combined with the hollow shaft of the spots were fine scratch to meet the requirements. 2, small scratch: a small rake angle with Sanjiaoguadao scraping. Fine scraping chips scraped thin, small ideas should show up fine scrape. Repeated and hollow shaft bearing grinding and scraping repeatedly, so watts per square centimeter surface idea until 1-3 when the work to be oil-lubricated bearings, between the bearing and the shaft between the requirements of the boiler pump shaft and the bearing shaft with a layer of very thin film lubricant. If poor lubrication, there is a direct friction between the pad and the rotating shaft, friction will produce a high temperature, high flow pump, although the pad is made of special high temperature alloys, high temperature but a direct friction is still sufficient to burned. Bearing also may be due to overload, over temperature, lubricating oil viscosity abnormal presence of impurities or bush-burning and other factors. After sliding bearing bush-burning is damaged. DG DA DA1 pump bearing | Beijing bush | Yongchang Pump by Hebei Yongchang Pump Manufacturing Co., Ltd .. Hebei Yongchang Pump Manufacturing Co. (www.hbycby.com) strong, credible, Baoding in centrifugal pumps and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Yongchang Pump and you hand into the brilliant, for a better future!