On 4/27/2012 4:34 PM, Jim Hoge wrote:
> Check McMaster- Carr. They list them but with a higher price tag. The
> manufacturer you want to search is Martin Sprocket and Gear. Any supplier of
> power transmission equipment ought to carry them. If you can tolerate a
> larger outside dimension then you can away from searching for only finished
> bore sprockets and go for bushing bore sprockets as well.
I had e-mailed them earlier. I just received a reply back stating they
could not make a recommendation for my application which was:
2" ID/Bore, finished or machinable, OD of roughly 4" and a linear force
on the chain of 500# which includes a safety factor.
I know I've seen systems that ran far more force than this.
Torque on the 2" shaft is roughly 1000 inch # at maximum wind gust. With
an OD of 4" this is reduced to 500# which would translate to 500 linear
# on the chain.
OTOH the small rotator can go to about 1500 in # so that would translate
to 750 # of linear force on the chain.
I have looked at the bushing bore sprockets, but not specked any out.
73
Roger (K8RI)
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