1. What is the purpose of lubrication?

The purpose of lubrication is to reduce friction, decrease wear, and improve equipment efficiency as a maintenance measure.

2. What are the "Five Determinations" of equipment lubrication?

They refer to specifying the person, the point, the schedule, the amount, and the quality.

3. Into what categories is lubrication divided based on different working surfaces and working condition constraints?

It is divided into fluid dynamic pressure lubrication, boundary lubrication, and semi-fluid film lubrication.

4. How are lubricating oils classified according to viscosity grades?

They are classified into light, medium, and heavy grades.

5. Which three concepts are commonly used to indicate the pros and cons of lubricating oil's viscosity-temperature characteristics?

Viscosity index, viscosity ratio, and viscosity-temperature coefficient.

6. What is a solid lubricant? Into what categories is it divided?

A solid lubricant uses solid powders, films, or composite materials as lubricating materials. It is divided into soft metals, metal compounds, non-metals and other inorganics, and organic substances.

7. How are lubrication methods and devices classified according to the form of lubricant supply to the lubrication point?

They are divided into individual lubrication and centralized lubrication.

8..What is oil mist lubrication? What are its advantages?

Oil mist lubrication is the process of converting oil flow into a mist through oil mist lubrication equipment and dispersing it to the lubrication parts. Its advantages include achieving excellent lubrication effects, dissipating a large amount of heat from friction pairs, lowering working temperatures, removing wear debris and tiny dust particles, and reducing oil consumption.

9. What factors should be considered when selecting lubricating grease?

Factors such as temperature, speed, load, and environment need to be considered.

10. What are the components of lubricating grease?

It is composed of base oil, thickener, stabilizers, and additives.