At the end of this lesson, you will be able to explain how lubrication is used in machinery to reduce friction. In addition, you will be able to explain why certain types of equipment require lubricants with specific viscosities.
• Define friction and describe the following types of friction:
– Static friction
– Solid friction
– Sliding friction
– Rolling friction
– Fluid friction
• Explain the relationship between friction and lubrication
• Describe three key roles of a lubricant in an operating piece of equipment
• Identify the three basic categories of lubricants and give an example of each
• Define viscosity
