Posted by John T on December 16, 2011 at 15:38:38 from (173.243.181.15):
In Reply to: Oh come on now ! posted by LJD on December 16, 2011 at 10:50:02:
GREAT CHAT, THANKS, I hope were helping the others with all this. Not a problem my friend, I figured you knew that, NOTICE I ADDRESSED MY COMMENT TO 2710 so he wouldnt think just "any" motor would suffice, because it simply, as Im sure you understand, will NOT.
My statement if modeled after yours to 2710 would read something more like:
In theory, you COULD use "almost" any size motor IF geared low enough SO LONG AS AND PROVIDED THAT it has enough HP to overcome the heat and friction loses of the winch just to turn it PLUSSSSSSSSSSSS enough additional HP to pull the actual load........
If you had a 1/20 HP hobby motor and I dont care if you tried to gear it down 100 to 1 or 1000 to 1, it may or may not even turn the winch let alone pull any load. IT TAKES X HP TO TURN ALL THOSE HEAVY GEARS. The gear reduction mechanism uses up some of the motors HP. Its true you may have more TORQUE by gearing down, but at the expense of RPM and HP is a function of Torque X RPM, you gain on one but loose on the other PLUS you get less out then you put in because the friction of the gears converts some of the input energy into wasted heat......
As an example, ever notice or wonder why old tractors were often rated as X HP on the Belt Pulley but LESS THEN X HP on the drawbar ?????? Thats beacsue it took HP to turn all those big heavy gears (friction heat loss) so you has LESS HP remaining on the drawbar.
Sure, most probably know what you meant and Im sure you understand the above, but hey if we can together by discusing this help 2710 or even one other person understand something about gear reduction and friction heat loss WE DID A GOOD JOB AND OUR GOOD DEED
Thanks again and God Bless you for all you do to help and contribute on here, I hope this helps other, but if not at least were havin fun lol
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