Re: FAN BELT CROSS REFERENCE -GATES

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Posted by Tim Daley(MI) on July 17, 2018 at 04:17:21 [URL] [DELETE] :

In Reply to: Re: FAN BELT CROSS REFERENCE -GATES posted by Randy(PA) on July 16, 2018 at 23:33:17:

Thanks, Randy. Yes, I have two NOS 8620-A belts and that is what I measure them at. BTW this measurement is the circumference. Width is 5/8" . As you know, the 9N-10130 pulley drawing shows the effective diameter at 3.5". Effective diameter is given and measured as an "Over-The-Roll" dimension. This means when rolls, precisely gage pins or gage balls are laid in the VEE-GROOVE, 180 apart, the ED is measured across them. The VEE included angle is 28. Pulley bore/ID must be square to the hub face w/n .002" TIR.

Tim Daley(MI)


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