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Hello,

I'm designing a hand-powered exhibit and I'd like to know if there are
advantages of using a "timing belt" over a "roller chain".

Perhaps there are differences in maintenance and wear, friction, maximum
distance between shafts, price?

Thanks for your thoughts!

Eric

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Eric Yuan
Exhibit Developer
Children’s Museum of Portsmouth
280 Marcy Street
Portsmouth, NH 03801
(603) 436-3853
www.childrens-museum.org 
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