Lubrication Basics

Whenever two moving, solid surfaces contact each other, there is friction which creates heat and leads to destructive wear. Lubrication is the process of introducing a lubricant substance between the surfaces in order to reduce that friction and wear. A lubricant can be a solid such as molybdenum disulfide or Teflon; a semi-solid, such as grease; a liquid, such as oil; or even a gas such as air. This course focuses primarily on the industrial uses of liquid oils and grease as lubricants.