[TowerTalk] US Tower bearing measurement needed

[Robin E. Midgett]

There are such things as shaft collars that will fit nicely around mast & 
more than sufficiently tight to transfer the vertical load to the thrust 
bearing. Check with an industrial supplier of bearings, shafts, gears & 
sprockets.



At 05:28 PM 4/29/2000 -0400, DMartin560@aol.com wrote:



><<      Most masts can be clamped above the thrust bearing with an
>appropriate U-bolt. The weight then rests on the U-bolt.
>
>        Another option is to grab the mast inside the tower with a sling
>choker and comealong/cable puller. Tighten it up until you've got the weight
>and loosen the TB screws/bolts.
>
>        Even 5/16 bolts should hold the weight if they can be properly
>tightened. It'll only take a little bit of tension to hold everything in
>place. The load you're talking about (less than 30#) is pretty small in the
>overall scheme of things.
>
>  Cheers,   Steve     K7LXC
>  Tower Tech >>
>
>Hi Steve and thanks!
>Thought about the U bolt option too...but was going to run the 2" mast all
>the way down to the rotor shelf and use the U bolt there.  This method is
>still under consideration.
>
>73
>Dwayne   KG4ADM
>
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73,
Robin E. Midgett KB4IDC EM66se
rmidgett@bellsouth.net
1/2 of the Award Winning NT4L Rover Team
http://www.almostanywhere.com/vhf/vhf.html


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