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Stavros Stavropoulos
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Steel Wire Ropes Friction With Cast Iron Sheaves

09/21/2016 9:38 AM

I would like to know what is the friction coefficient of steel wire ropes in the grooves of traction sheaves made either of grey cast iron or ductile cast iron. The ductile cast iron could be used better in hardened sheaves but perhaps the low friction can make it not allowed.
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lyn
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#1

Re: Steel Wire Ropes Friction With Cast Iron Sheaves

09/21/2016 9:55 AM

Easily found with a web search.

Many more there, just search.

Friction and Friction Coefficients - Engineering ToolBox
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Stavros Stavropoulos
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#7
In reply to #1

Re: Steel Wire Ropes Friction With Cast Iron Sheaves

09/22/2016 12:47 AM

I cannot find anything about the different coefficients of cast iron and ductile iron.
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lyn
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#10
In reply to #7

Re: Steel Wire Ropes Friction With Cast Iron Sheaves

09/22/2016 1:02 AM

Perhaps you should try to understand that they may not be that different.

Learn how to use a search engine.

The Difference between Cast Iron and Ductile Iron - Dandong Foundry
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dj95401
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#13
In reply to #10

Re: Steel Wire Ropes Friction With Cast Iron Sheaves

09/23/2016 5:48 PM

Made China? "In China, we classified the grey cast iron degree by ....."

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Kilowatt0
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#2

Re: Steel Wire Ropes Friction With Cast Iron Sheaves

09/21/2016 10:02 AM

LMGTFY (Let Me Google That For You)

Just click the link above, or type "friction coefficient of steel wire ropes in the grooves of traction sheaves" into your favorite search engine.

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Stavros Stavropoulos
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#8
In reply to #2

Re: Steel Wire Ropes Friction With Cast Iron Sheaves

09/22/2016 12:49 AM

Of course I did it first. But I cannot find anything about cast iron and ductile iron friction coefficients.
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Stavros Stavropoulos
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#3

Re: Steel Wire Ropes Friction With Cast Iron Sheaves

09/21/2016 11:32 AM

I just want the friction coefficient difference between grey cast iron ductile cast iron
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SolarEagle
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#4
In reply to #3

Re: Steel Wire Ropes Friction With Cast Iron Sheaves

09/21/2016 1:12 PM

Well I guess you'll have to figure it out....

https://www.engineersedge.com/coeffients_of_friction.htm

https://en.wikipedia.org/wiki/Cast_iron

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

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lyn
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#5
In reply to #4

Re: Steel Wire Ropes Friction With Cast Iron Sheaves

09/21/2016 1:15 PM

He wants the SPECIFIC answer fed to him on a silver spoon.

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SolarEagle
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#6
In reply to #5

Re: Steel Wire Ropes Friction With Cast Iron Sheaves

09/21/2016 1:37 PM

Eat the knowledge before it eats you....

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Stavros Stavropoulos
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#11
In reply to #4

Re: Steel Wire Ropes Friction With Cast Iron Sheaves

09/22/2016 1:21 AM

All the tables I found are not listing different cast irons. The friction coefficient is always generally "cast iron - steel". The ductile cast irons are physically between grey cast irons and steel. So, I suppose, the friction coefficient "ductile cast iron - steel" must be between the coefficients of "grey cast iron - steel" and "steel - steel". But this is only hypothetical. I need something more concrete.
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SolarEagle
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#12
In reply to #11

Re: Steel Wire Ropes Friction With Cast Iron Sheaves

09/22/2016 10:30 AM

Some things you have to pay for.....

http://www.ametektest.com/learningzone/testtypes/coefficient-of-friction-testing

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Codemaster
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#14
In reply to #11

Re: Steel Wire Ropes Friction With Cast Iron Sheaves

09/25/2016 12:38 PM

What do you hope to do with the figure if you get one? I doubt you could come up with a satisfactory design using theoretical calculations, there must be a lot of practical experience involved, including the factors mentioned by SolarEagle in #3. His link looks like a good place to start.

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Stavros Stavropoulos
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#9

Re: Steel Wire Ropes Friction With Cast Iron Sheaves

09/22/2016 12:52 AM

The question is not how to calculate the friction but the different "friction coefficients" of cast iron and ductile iron.
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Users who posted comments:

Codemaster (1); dj95401 (1); Kilowatt0 (1); lyn (3); SolarEagle (3); Stavros Stavropoulos (5)

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