resin vs. metal pulley

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project3
Posts: 211
Joined: Tue Jul 14, 2009 2:18 am

by project3

i noticed all the top end pulley are mainly using metal material but what is the differences between resin and metal pulley.

metal pulley like Ultimate ceramic, ceramic speed and hawk racing of cause ceramic speed do have resin too.

Resin adsorb vibration and metal is light weight?

by Weenie


Geoff
Posts: 5022
Joined: Sat Dec 13, 2003 2:25 am
Location: Canada

by Geoff

Don't think so. Both Record and Dura-Ace pulleys are composite. I think Ceramic Speed is, too.

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bura
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Location: Civitatis Vaticanae

by bura

@Geoff: +1
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davidalone
Posts: 589
Joined: Fri Feb 10, 2012 4:27 pm

by davidalone

I dont think absorbing vibrations ( or as we engineers call it, damping factor) of the material has anything to do with the choice of material of pulleys. neither does light weight. you could make them equally as light, just depends on your design.

my gut tells me the factors at play here are wear rate and manufacturing costs.

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ave
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Joined: Sun Dec 28, 2008 10:15 pm
Location: Hungary

by ave

Maybe noise levels are taken into consideration too.

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