Lubricants and Materials for Tribological Applications

The objectives of this chapter are to: (i) Define the term lubricants and identify, outline and discuss the principal types of lubricants; (ii) Identify, outline and describe the three typical inorganic compound kinds that could be employed as solid lubricants; (iii) Identify, outline and discuss those significant properties of commercial fluid lubricants; (iv) Identify, outline and discuss the reasons the effectiveness of the lubricating oil deteriorates over time or requires replacement after some time of usage; (v) Outline and discuss the lubricating oil selection and materials for tribological applications; (vi) Define the term additives and outline their roles and functions within lubricants; (vii) Identify, outline and describe the commonly used additives; (viii) Outline and discuss the tribology of rolling elements and applications; and (ix) Analyse, derive and discuss the power absorbed to overcome the viscous resistance due to the lubricating oil’s viscosity in rolling bearings, such as journal, foot-step and collar bearings.