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-   -   Zipline Diameter Pulley Friction/ Rolling Resistance (http://www.physicsforums.com/showthread.php?t=594084)

fluke70 Apr6-12 05:51 PM

Zipline Diameter Pulley Friction/ Rolling Resistance
 
My zipline is 200 feet long built with 7/16" Stainless Steel Cable. Would 3/8" cable result in a faster ride with less noise from the trolley due to significantly less surface area for friction?

OldEngr63 Apr6-12 08:14 PM

Re: Zipline Diameter Pulley Friction/ Rolling Resistance
 
Look at the contour of your pulley to see exactly what difference in contact area will result.

My initial reaction is to say that this will not make a lot of difference because I suspect that the noise is generated in the pulley bearing, and that would not be affected by changing the cable.


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