[SEL] Belt power question

[Missy Holland]

Bill,
It's 746 watts to the horsepower. Your car alternator is putting out:

65 Amp * 12v = 780 watts.
780/746 = 1.05 Hp

As to the belts, one to three horsepower to the belt, but you can get a
Gates catolog and it will walk you through the steps to calculate
horsepower transmission capacity for sheave size and rpm.

Missy Holland


>
> I'm wanting to create some displays to run with engines.
> Question - how much horsepower can be transmitted by a belt say the size
> of
> an old fan belt from a car, or an A/C belt.
> I have a LOT of old belts I've collected over the years. I've used them
> for
> small things like squirrel cage fans and such powered by my engines, but I
> was wondering, if I get more serious, how much HP can a "fan belt"
> actually
> transmit?
> Heck, how much HP does a car fan take? Can't be much.... And an alternator
> cranking out 65 amps is drawing what, a bit over 1 hp?
>
> Bill
> Runnells, Iowa USA...........
>
>
>
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