Why is a gap left at the lubrication points of operating equipment? ? What effects do excessive or insufficient gaps have on the equipment?
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Why is a gap left at the lubricated parts of operating equipment? What effects do excessive or insufficient gaps have on the equipment?
There are gaps between the moving parts.
If it is too large, no oil film can be formed, and thus no sealing is possible; if it is too small, it will get stuck.
What the people upstairs said is all correct. The clearance for the sliding bearings in compressors is usually 1–1.5D/1000, while the axial clearance for the rolling bearings in ordinary pumps is around 5 diameters; these values are chosen to ensure better lubrication and prevent the components from becoming stuck due to heat expansion.
The clearance should still be adjusted in accordance with the requirements specified in the equipment’s user manual.