[TowerTalk] Worm Gears

[Wilson]

Hub City touts their helical gear units, at 90+% efficiency vs 60% for 
worms.
I don't know about their resistance to back driving, but at 50-60:1, it 
wouldn't take much of a brake...
WL

-----Original Message----- 
From: John Santillo N2HMM
Sent: Tuesday, July 14, 2015 12:47 PM
To: Wilson
Cc: towertalk
Subject: Re: [TowerTalk] Worm Gears

We've used exposed worm gears (88:1) successfully for many years on a
tower trailer. It does require lubricant and should be replaced after ten
years of use but they do work well.

73,

John
N2HMM


> I know we can buy them and that they “work” somewhat as advertized,
> but I’ve never seen a serious worm gear application that didn’t
> involve
> Running in an oil bath in a closed housing.
> In that environment, I’d guess one could get some hydrodynamic oiling,
> greatly reducing friction and wear.
> Now to find ham priced reducers!  off to the jukyard.
> WL
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>