Engineering and Design Database | Engineering Application & Design

This menu provides links to web documents about the basics of Lubrication for Designers and Engineering.

• Film Thickness Lubrication
• Hydrodynamic or Fluid Film Lubrication
• Journal Bearings - Hydrodynamic or Fluid Film Lubrication
• Lubrication General and Overview
• Oil mist Eliminators Review
• Shear Strength and Pressure 
• Thrust Bearings - Hydrodynamic or Fluid Film Lubrication

Boundary Lubrication

• Definition of Boundary Lubrication
• Oiliness Concept - Boundary Lubrication

Extreme Pressure (EP) Lubrication

• Extreme Pressure (EP) Lubrication General
• Extreme Pressure (EP) Lubrication Additives

Hydraulic Fluid Distillation

• Elastohydrodynamic (EHD) Lubrication
• Oil Refining
• Crude Distillation
• Residuum Distillation
• Impurity Removal

Types of Oil

• Classification of Oils
• Paraffinic Oils
• Naphthenic Oils
• Synthetic Oils Overview, Pros and Cons
• Synthetic Lubricant Categories

Characteristics of Lubricating Oils

• Oil Viscosity
• Viscosity Index
• Pour Point
• Cloud Point of Oil
• Flash Point and Fire Point of Oil
• Acid Number or Neutralization Number
• Oil Classifications and Grading Systems

Hydraulic Fluids

• Purpose of Hydraulic Fluids
• Viscosity of Hydraulic Fluid
• Compressibility of Hydraulic Fluids
• Stability of Hydraulic Fluid

Quality Requirements of Hydraulic Fluids

• General - Quality Requirements of Hydraulic Fluids
• Oxidation Stability of Hydraulic Fluid
• Agitation - Hydraulic Fluids
• Rust and Corrosion Prevention Hydraulic Fluid
• Air Entrainment and Foaming Hydraulic Fluid
• Demulsibility or Water Separation Hydraulic Fluid
• Anti Wear Properties of Hydraulic Fluid

Types of Hydraulic Fluids

• Petroleum Hydraulic Fluid
• Fire Resistant Hydraulic Fluid
• Water-Glycol Hydraulic Fluid

Water-Oil Emulsions

• Oil-in-Water Hydraulic Fluid
• Water-in-Oil Hydraulic Fluid
• Synthetic Fire-Resistant Fluids

Grease

• General Description
• Function of Grease
• Application of Grease
• Functional Properties of Grease, Pros and Cons

Grease Characteristics

• Apparent Viscosity Grease
• Bleeding, Migration, Syneresis of Grease
• Consistency, Penetration, and National Lubricating Grease Institute (NLGI) Numbers
• Contaminants in Grease
• Corrosion and Rust Resistance of Grease
• Dropping Point of Grease
• Evaporation of Grease
• Fretting Wear and False Brinelling
• Oxidation Stability - Grease
• Pumpability and Slumpability of Grease
• Shear Stability of Grease
• High Temperature Effects on Grease
• Low Temperature Effects on Grease
• Texture of Grease
• Water Resistance of Grease

Solid Lubrication

• Solid Lubrication - Definition and General
• Characteristics of Solid Lubricants
• Applications of Solid Lubrication
• Advantages of Solid Lubrication
• Disadvantages of Solid Lubrication

Common Types of Solid Lubricants

• Graphite Characteristics
• Molybdenum Disulfide (MoS₂) Characteristics
• Soft Metal Film Lubrication
• Surface Treatment for Lubrication
• Methods of Applying Solid Lubricants
• Self-Lubricating Composites
• Polymer Lubrication
• Metal-Solid Lubrication
• Carbon and Graphites
• Ceramics and Cemets