[TowerTalk] FW: MA550-MARB Question
barry at mxg.com
Sun Apr 23 13:35:28 EDT 2006
From: Bill Simpson [mailto:n5ya at earthlink.net]
Sent: Sunday, April 23, 2006 11:56 AM
To: barry at mxg.com
Subject: RE: [TowerTalk] MA550-MARB Question
This collar is a locking eccentric and it has a hole in the side for a pin wrench (or whatever) to tighten it. This centers it
automatically in the bearing. Don't throw it away - just make it work. It's a common way that it is done. It's probably Peer
From: Barry Merrill [mailto:barry at mxg.com]
Sent: Saturday, April 22, 2006 20:29
To: 'Bill Simpson'
Subject: FW: [TowerTalk] MA550-MARB Question
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of Richard M. Gillingham
Sent: Saturday, April 22, 2006 1:56 PM
To: towertalk at contesting.com
Subject: [TowerTalk] MA550-MARB Question
I have recently received my MA-550 with MARB rotator base from UST. All arrived in fine condition.
Included with the base bearing is a collar with setscrew. Collar is machined with an eccentric 'rabbet' (for lack of a better word)
in one of the two flat sides.
The bearing has a mating eccentric machined on it. The shaft of the mast is not large enough to enable the collar's setscrew to
fix it in position.
The OD of the shaft is 1 1/2", the ID of the bearing is 1 3/4". Not exactly a sliding fit. Can anyone tell me what's going on
here. Do I just discard the collar and drop the shaft through the bearing and go? Or is there a bushing or something I'm missing.
I received everything on the Bill of Lading.
Thanks in advance
Naturally it's Saturday. Can't call UST 'til Monday.
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