In a message dated 99-09-07 15:17:33 EDT, radio_9k2ub@yahoo.com writes:
> The hygain thrust bearing part No is 801495 tagged as follow HT-TB
> thrust bearing. again, the bearing collar on this one is not attached
> to the bearing flange, simply put , the top part is easily removable ,
> I am not comfortable with that, though , I have never seen a thrust
> bearing before this one but I think the top collar should be coupled to
> the flange in some strong way !Any ideas if this type of thrust bearing
> is suitable for guyed towers, because in the general description in the
> cataloge it indicates smoething about usage on crank-up towers.
>
Hi, Mohammad --
The Hy-Gain thrust bearing is fine for any tower/mast applications.
Since masts typically only turn one revolution-per-minute, they can be like
the Hy-Gain which is basically a couple of bushings without any ball
bearings. It's just another design. The Yaesu uses a different design also.
Cheers, Steve K7LXC
Tower Tech
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