Dry Start Bearing For Vertical Pumps
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Compound bearings made of PTFE and synthetic rubber were developed for vertical pumps to startup without initial lubricating water. Through various experiments, they were clarified to be superior to any other bearings of this kind. That is, this compound bearing undergoes rather less wear than the synthetic rubber one; it does not easily produce the unstable motion of rotor; and the degree of influence of the factors that contribute to wear was realized. Moreover, by the adoption of this bearing, it was possible to lower the maintenance cost and to increase the reliability of the pump.
Satoh, Hiroshi; Takeda, Hirohisa (1989). Dry Start Bearing For Vertical Pumps. Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University. Available electronically from