The bearing clearance of a centrifugal compressor is small – how to deal with it?
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The required clearance for the support bearings of a centrifugal compressor is 0.17–0.23; the measured clearance is 0.17. How can I increase this clearance? The bearing is an inclined pad bearing with a total of 5 pads. Can the tile scraping method be used?
In tilting pad bearings, designers generally do not allow the pads to scrape against each other; it is possible to remove the pads, and if there is a pad seat on the back of those pads, adjusting the shims can help to regulate the clearance. Also, use sandpaper to grind the bottom of the tile to the desired size, and that’s it
The voltage isn’t high, so there’s no problem with this gap. If there is a padding layer on the back of the tile, consider adjusting its thickness to ensure the proper gap; if it’s necessary to repair the babbitt alloy, metallic sandpaper can be used
Place 1000-grit metalworking sandpaper upside down on the shaft, apply lubricant to the sandpaper, and rub the bearing blocks against it several times; remember the number of times each rubbing is performed. Measure the thickness of each block using a micrometer – claiming that tilted bearing blocks cannot be repaired is a lie.