7,50D8X5 multi-stage pump, pump shaft and mechanical and electrical shock is not in the same center line. Or shaft crooked material. The axial center of the pump and motor alignment, 8, bearing overheating. No oil. Pump and motor shaft not in the same center line. Come on. Aligned with the centerline of the shaft, 50D8X3 multi-stage pump, check or clean the bearing body. Three, D-type multi-stage centrifugal pump Features: 1, hydraulic model of advanced, high efficiency, wide range of performance. 2, the pump runs smoothly, multi-stage pump, low noise. 3. Seal with soft packing seal or mechanical seal, 50D8X6 multistage pumps, seals safe, reliable, simple structure, convenient maintenance. 4, the shaft is fully sealed structure to ensure no contact with the media, does not rust, long life. 50D8X6 multistage pumps, multistage pump, multistage pump models provided by the Shijiazhuang-Index Limited send pump. Shijiazhuang-school Pump Co., Ltd. (www.shipaipump.com) strong, credible, and other industries in other Shijiazhuang, Hebei accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Shijiazhuang-faction pump into the brilliant and you work for a better future!