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Marine Lubrication Principles and Systems

Learn about the principles of lubrications and the use of lube oils in engines in this free online course from Alison.

Publisher: ADU
This free online course on Marine Lubrication Principles and Systems takes you through the fundamental lube oil properties that are particularly important for lubrication. The course explains the categorization of lube oils used onboard and the principles of various types of lubrication. By the end of this course, you will become familiar with the reasons for using additives in lubricants as well as lube oils selected for marine diesel engines.
Marine Lubrication Principles and Systems
  • Duration

    3-4 Hours
  • Students

  • Accreditation






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In an engine system, a lubricant will reduce friction and wear between the moving parts, keep metal surfaces clean by carrying away possible deposits, and provide a seal to keep out dirt. Lubricating oil will also carry away the heat generated in bearings and gears, thereby preventing overheating, seizure as well as possible breakdown. Marine Lubrication Principles and Systems is a free online course that will explain how lubricants preserve machinery health, along with how they apply to small and very large equipment. You will learn about solid lubricants like greases as well as their extreme importance in allowing long-term use of roller and ball bearings. In this course, the key focus would be put on liquid lube oils and their applications in modern diesel engines. The course then goes on to describe how the lubrication system of an engine supplies lubricating oil to the various moving parts in the engine. You will be introduced to the main function of the lubricating oil which is to enable the formation of a film of oil between the moving parts of a lubricating system. You will learn about the uses of the lubricating oil as a cleaner and in some engines as a coolant.

In this course, you will study the properties of various lubricants, the lubrication of medium-speed 4-stroke diesel engines, and the lubrication of low-speed 2-stroke diesel components like the main bearing, cross-bearing, thrust bearing, cylinder liner. You will also analyze the purification process as well as the associated testing and treatment of lube oil in keeping it suitable for shipboard use. You will learn about Rolling friction as the resistive force that slows down the motion of a rolling ball or wheel. You will also be taken through the definition of oil including the functions played by oil in an engine system. You will learn about the importance of viscosity in an engine and how varying temperatures affect viscosity. You will be taken through the different classifications of lube oil and the advantages of synthetic oils over mineral oils. Additives are chemical compounds which are added to protect the machinery and increase the life of the oil. This course explains the reason for the addition of additives to lube oils and the process by which the additives are added. 

Finally, the course explains the various functions of a lubricating system including cleaning lubrication, cooling, and corrosion inhibition. The course then explains the types, categories and classifications of lube oils. The main lubrication system consists of storage tanks for storing lubricating oil. You will learn about the process in which the main engine lubricating oil sump receives oil from the storage tank. You will also learn how the main lubricating oil supply pump draws suction from the sump and supplies it to the various components of the engine. The course describes the properties of a lubricant in the reduction of friction and wear. The course explains how lubricants carry the deposits or dirt and takes away the heat generated in bearings as a working medium. This course then explains the principle of the piston oil flow and how internal lubrication works in a medium-speed engine. The course describes the frequent inspections and sampling of lubricating oil which must be made to ensure that the correct quantity of the proper lubricant is in an engine. Marine Lubrication Principles and Systems is a free online course that will be of immense interest to students, researchers, maritime engineers or personnel and anyone seeking to learn about the mechanisms and principles of lubrication in maritime systems. Start this amazing course today and improve your knowledge of the underlying principles of lubrication in mechanical systems.

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