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sandeep lokhande
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Coefficients of Friction

03/30/2009 2:13 PM

Please tell me how can i calculate coefficient of friction

film to film

metal to film

rubber to film

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RVZ717
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#1

Re: Coefficients of Friction

03/30/2009 3:54 PM

http://en.wikipedia.org/wiki/Friction

http://www.roymech.co.uk/Useful_Tables/Tribology/co_of_frict.htm

http://www.matweb.com/reference/coefficient-of-friction.aspx

...Results of a quick web search. You will need to first know the Values for each material. Look up your specific material data on....say .. Matweb. or look them up on a general table in the second link. the second link (although i did not study it in detail) should contain all the information you need. You did no specify which type IE static/sliding/rolling etc. so a more specific answer is not possible.

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nick name
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#2

Re: Coefficients of Friction

03/30/2009 4:38 PM

If you want to compute the friction between two bodies with a relative movement you will have to find or estimate the coefficient of friction and not to compute it.

Only when you make a test in the plant or in the lab you will compute the friction coefficient knowing the load and the force / torque required to make the parts move with respect to each other.
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davidtphillips
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#3
In reply to #2

Re: Coefficients of Friction

03/31/2009 3:45 AM

You need to use testing equipment. Here is an example Coefficient of friction.pdf. If you would like more information please contact us.
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