On 7/31/2014 2:35 PM, Ralph Bolt via TowerTalk wrote:
To: Fredric Serota <fserota@msn.com>
Cc: towertalk reflector <towertalk@contesting.com>
Subject: Re: [TowerTalk] Recommendations for an electric foldover
winch?
I use this gear motor on a home-brew frame to raise my Texas Tower TMM 541.
It's slow but effective. I simply put a chain sprocket on the motor and on the
Fulton crank handle, built a frame to attach it to the tower and it works fine.
RPM is ten with 500 inch-pounds of torque. The motor is 110AC and is
reversible.
At the website, see gear motor VW100 and I used the model with a 162 gear
ratio, 4-pole
Google for chains and sprockets or email me and I'll dig up a reference..
http://www.vonweise.com/ProductsVW.PDF
Ralph, K0HML
This seems like a very tiny gearbox to be claiming 500 inch pounds of
torque. The shaft is only 3/16" which is another bad sign. Would
you tighten a 10-32 bolt to 40 ft pounds? Did you get additional
mechanical advantage by using different size sprockets?
BTW, slow is good, so your winch doesn't overheat.
Rick N6RK
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