What is the general thickness of an oil film?

1 Answers
StDiana
07/30/25 1:57am
Lubricating oil film thickness is actually difficult to estimate. Generally, the oil film of high-speed machinery is slightly thicker, while that of low-speed machinery is thinner. The thickness of the oil film is generally in the micrometer to sub-micrometer range. For some precision machinery, the thickness may be even thinner, approximately a few layers of oil molecules, which is at the nanometer level. The following is relevant information: 1. Lubricating oil: Lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and mechanical equipment to reduce friction, protect machinery and processed parts. It mainly functions to lubricate, assist in cooling, prevent rust, clean, seal, and cushion. 2. Composition: Lubricating oil generally consists of two parts: base oil and additives. The base oil is the main component of lubricating oil, determining its basic properties. Additives can compensate for and improve the shortcomings of the base oil's performance, imparting certain new properties, making them an important part of lubricating oil.
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