Tape Drive Capstans

[Al Kossow]

On 1/29/15 1:41 PM, Chuck Guzis wrote:
> Pinch rollers, actually.
>
> Does anyone have specs for a typical pinch roller?  Namely, hardness (Share D)?  I wonder of plain old casting polyurethane might be the best solution.  Most casting resins seem to clock in at Shore 70D.
>
> --Chuck
>
>
here is a nice chart with three hardness scales

http://www.sdplastics.com/polyuret.html