Wednesday, 3 April 2013

LUBRICATION

                                          LUBRICATION 

Lubrication  is used to reduce the friction between the  two surfaces and reduce the rate of wear in  material  ,which are moving relaatively to each other .
For lubrication we use some lubricants such as lubricants oils ,greases solid lubricants .
LUBRICANT OILS :- 
                                     lubricant oils are make a fluid film  to pumping fluid into contact region and for hydrodynamic acctions .
GREASES :-
                       greases are semi solid lubricants and were devoloped for use  where oil would  run out of lubricanting zone . it consists of fatty materials.
SOLID LUBRICANTS :-
                                           solid lubricant should attach  to the surfaces of one  or both of a sliding pair to be effective for any reasonable  length of time .
EXAMPLE :- simply when you going to for service of your car then they will asks for to change the engine oil and break oil etcc thats are lubricants and prevent your vehicle parts  from wear .

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