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Stainless steel gear pump sliding bearings are made of graphite impregnated, filled with PTFE, engineering ceramics, etc. Because engineering ceramics have good heat resistance, corrosion resistance, and friction resistance, the sliding bearings of stainless steel gear pumps are mostly made of engineering ceramics. Because engineering ceramics are very brittle and have a small expansion coefficient, the bearing clearance must not be too small to avoid accidents of shaft holding. Since the sliding bearings of the stainless steel gear oil pump are lubricated by the conveyed medium, when choosing a SS gear oil pump, different materials should be used to make the bearings according to different media and operating conditions.
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