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FITTING AND MACHINING THEORY MODULE 5 Lubrication Learning Objectives
On completion of this module the student will be able to: • Classify lubricants into THREE main types; discuss their suitability and application for the purpose and conditions under which they are used.
• Explain the following lubrication terms; rubbing pressure, rubbing speed, temperature with regard to flash-point, burning point and cold point, viscosity, adhesion and cohesion.
• Discuss the following briefly: − hydrodynamic lubrication − properties that lubrication must have − choice of a lubricant − functions of lubrication
• Identify, name and categorise the following lubricating devices and explain the working principles of each:
− Force (pressure-feed) lubrication › Oil or grease gun