[TheForge] Little Giant / pulley / rpm / ???

Bob blcksmth at wcnet.org
Wed Mar 18 23:23:39 EDT 2015


     1725 divided by 5 = 345
     345 times 8 = 2760
     2760 divided by 10 = 276

Bob Willman
The Eagle's Anvil
Bowling Green, Ohio
WB8NQW

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On 3/18/2015 11:06 PM, Dave Mudge wrote:
> Good evening kids,
> I am setting up a nice 25# Little Giant hammer and i have some questions.
> This hammer came with a 1-1/2 hp. motor connected to a speed reducer.
> The motor turns at 1725 rpm, connected to a reducer that is 5:1. The output
> of the reducer is connected to an 8" flat belt pulley and the hammer has a
> 10" flat belt pulley..........
> Of course the question is, How fast will the hammer be turning if I use
> this set up?
> I don't recall ever seeing a hammer set up in such a fashion, on the other
> hand I haven't
> seen everything by a long shot. So why do you think that the hammer was set
> up like this?
> In the book, "The Little Giant Powerhammer" by Richard Kern it says that
> the speed should be around 375 rpm.
>
> Thanks,
> dave m
>



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