What is the purpose of a static lubricating film?

The purpose of a static lubricating film is to prevent direct contact of moving parts at startup. When machinery is initially started, there can be a moment of metal-to-metal contact before full lubrication is established. A static lubricating film helps to create a protective barrier between the surfaces of the components, ensuring they do not make contact and thereby reducing wear and tear on the parts. This is particularly critical during startup when the moving parts are not yet fully submerged in the lubricant, and adequate hydrodynamic lubrication has not been established. By preventing contact, the static film effectively reduces friction and potential damage, thereby enhancing the longevity and reliable operation of the machinery.

While enhancing oil viscosity, promoting oil migration, and helping to aerate the lubricant are important aspects of lubrication technology, they do not address the primary function of a static lubricating film during startup conditions specifically. The primary focus here is on safeguarding surfaces from premature wear, which is crucial in maintaining machinery health.