There is (almost) nothing harder to drill than
galvanized plate like the Rohn rotor plates!
I had to take mine to a shop to have it done by
someone with a very heavy-duty drill press and
proper very-hard bits. It took a while, with
some cursing thrown in.
Cold galvanizing will probably not hold up
against moisture in that application (threads
will wipe it away), but you can start there.
What do others suggest?
Jeff Maass K8ND
> -----Original Message-----
> From: email@example.com
> [mailto:firstname.lastname@example.org]On Behalf Of email@example.com
> Sent: Thursday, November 04, 2004 8:05 AM
> To: TowerTalk List
> Subject: Re: [TowerTalk] Rotor plates
> That's probably because rotator plates are not meant (by Rohn) to be used
> TB-3 thrust bearings, just rotators. The Rohn top plates are drilled for
> but not rotators. I'd say get out your drill and have at it. Don't forget
> spray some cold galvanizing on the inside of the holes as you'll have bare,
> unprotected metal there. Phil KB9CRY
> > I stand corrected. Just looked at a spare one I have around and, sure
> > enough, no TB-3 holes!
> See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
> Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
> and ask for Sherman, W2FLA.
> TowerTalk mailing list
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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