Author: "Gerald J. Mc Grantham" <KC4RN@comcast.net>
Date: Thu, 3 Apr 2014 08:23:00 -0400
Good Morning All, I need to replace the winch on my Hy-Gain 72 foot crank up tower. Do I want a single or dual speed winch? I do not know what is on the tower now other than it is a Fulton 2500. Bein
Hi Gerald the Fulton 2500 is a single speed winch...a dual speed winch takes LESS effort but more revaluations. I have two 3200 lb dual speed winches ( old model with the removable handles ) this is
Author: Jon Pearl - W4ABC <jonpearl@tampabay.rr.com>
Date: Thu, 03 Apr 2014 11:51:22 -0400
Hi Gerald, Have you given any consideration to a worm gear drive? Dutton-Lainson lists several conventional 'brake' style hand winches on their site but they also offer several worm gear styles. WG20
How do, Gerald is looking for a new winch for his tower. Please, be careful that you don't get a winch that has a FREE WHEEL position. Nothing worse than the winch getting in that mode and having the
Worm gear winches have a lot of friction, which roughly doubles the turning effort. If they didn't have all this friction, they would free wheel down. The considerably heating of the worm gear is als
Author: Patrick Greenlee <patrick_g@windstream.net>
Date: Thu, 03 Apr 2014 14:32:57 -0500
Worm drives with a greater ratio than "the critical ratio" will not motor back and freewheel. They "Park" wherever they are left. This is a safe situation. Worms with lesser ratios will freewheel and
Does anyone have the real info on these? I am told that the 2500 comes in an A and a B model or something to that effect. Also to be SURE you would want one with a brake. I have a friend who needs on
Author: Jon Pearl - W4ABC <jonpearl@tampabay.rr.com>
Date: Thu, 03 Apr 2014 16:50:51 -0400
Hi Rick, et al, Owing to the high angles at which the worm and spur gear are cut and caused to mesh in a self-locking worm gear set, a fair amount of friction is inevitable. And 'yes' they have to me
So there you have it. By design the self-locking worm gear is very inefficient causing some frictional heating but it's also easy on the muscles and stops where you leave it. If used properly and un
Author: Jon Pearl - W4ABC <jonpearl@tampabay.rr.com>
Date: Thu, 03 Apr 2014 17:46:42 -0400
Then I would defer to you. While my contribution was to do a little background digging - you have direct knowledge. Now if they only produced those gears in bronze. 73, Rick. Jon Pearl - W4ABC www.w4
Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Thu, 03 Apr 2014 23:57:07 -0400
Gerald is looking for a new winch for his tower. Please, be careful that you don't get a winch that has a FREE WHEEL position. Been there, done that, and had to go to the emergency room to get the hi
Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>
Date: Fri, 04 Apr 2014 00:19:53 -0400
All of the "worm gear" winches I've seen were not true worm gear, worm gear wheel, which have very little friction, but a tremendous gear ratio. All the winches had a worm gear, but in place of the w
Author: Patrick Greenlee <patrick_g@windstream.net>
Date: Fri, 04 Apr 2014 08:49:22 -0500
You were lucky to only have to go to a clinic to get skin flap reattached. A free wheeling multi-speed winch (coffee grinder - jib sheet on racing boat) malfunctioned and went free wheeling killing t
Author: Jon Pearl - W4ABC <jonpearl@tampabay.rr.com>
Date: Fri, 04 Apr 2014 17:02:49 -0400
Hi Patrick, Not being a mechanical engineer, I knew what I wanted to say in response to you, but I didn't know how to express it. It's not the ratio, but the way the gear teeth mesh that determines w