This article discusses the functions of lubricants to prevent premature failure of rolling element bearings and the advantages of fluid lubrication. It describes the composition of refined mineral oil for rolling bearing applications. The article reviews the types and properties of nonpetroleum oils, such as polyglycols, phosphate esters, silicone fluids, dibasic acid esters, and fluorinated polyethers. It discusses the properties of greases, including grease speed limits, grease composition, relubrication intervals, corrosion prevention behavior, and grease compatibility. The article concludes with a discussion on polymeric lubricants and solid lubricants.

Cutting fluids play a major role in increasing productivity and reducing costs by making possible the use of higher cutting speeds, higher feed rates, and greater depths of cut. After listing the functions of cutting fluids, this article then covers the major types, characteristics, advantages and limitations of cutting and grinding fluids, such as cutting oils, water-miscible fluids, gaseous fluids, pastes, and solid lubricants along with their subtypes. It discusses the factors considered during the selection of cutting fluid, focusing on machinability (or grindability) of the material, compatibility (metallurgical, chemical, and human), and acceptability (fluid properties, reliability, and stability). The article also describes various application methods of cutting fluids and precautions that should be observed by the operator.

This article presents a brief discussion on the main applications for low- and high-viscosity polyalphaolefins (PAOs) and highlights key areas of interest and shows why PAOs are used in these applications. It discusses the physical properties of passenger car motor oils (PCMOs) based on or containing PAOs. The properties include Noack volatility and pour point. The article also discusses the properties and applications of heavy-duty engine oil (HDEO), industrial lubricants, food-grade lubricants, greases, transportation gear oils, compressor oils, hydraulic fluids, and transmission fluids.

The function of lubricants is to control friction and wear in a lubricating system containing machine elements such as gears and bearings. This article discusses the basic properties of lubricants to help scientists and engineers understand the principles behind lubricant selection. It reviews the functions of additives, such as friction modifiers, antiwear additives, viscosity modifiers, corrosion inhibitors, oxidation inhibitors, dispersants, and detergents. The article discusses the physical properties of liquid lubricants and the performance characteristics of lubricants. It describes the most common lubricant categories and provides information on the health and safety aspects of using liquid lubricants. The article concludes with a discussion on the lubricant-application method that plays a vital role in how the lubricant functions.

The selection of material for a drawing die is aimed at the production of the desired quality and quantity of parts with the least possible tooling cost per part. This article discusses the performance of a drawing die. It contains tables that list the lubricants used for deep drawing, and the typical materials for punches and blank holders. The article describes the typical causes of wear (galling) of deep-drawing tooling. It analyzes the selection of a harder and more wear-resistant material, the application of a surface coating such as chromium plating to the finished tools, and surface treatments such as carburizing or carbonitriding for low-alloy steels or nitriding or physical vapor deposition coating for tool steels.