[TowerTalk] Thrust Bearings

[Phil Clements]

Good morning, Mohammad,
A thrust bearing mounts on a rotor plate above the rotor, or at the
top of a flat-top tower. It has ball bearings inside and set screws to tighten
into the mast. This makes the mast much easier to turn. (much less friction)
Most importantly, it removes all of the weight of the mast and antenna system
from the rotor. The rotor can be removed for service/replacement without moving
the mast. We who are using long masts and several antennas use two plates
and bearings several feet apart to keep the mast perfectly aligned at the rotor
in high winds.

Best DX!
(((73)))
Phil, K5PC





>
>Hello all ,
>
>How imporatnt are thrust beraings. In my tower setup the top section is
>basically the three legs of the tower welded to a 2.16 " Id pipe about
>2' long. Is this kind of top section considered as a replacement for
>thrust bearings?.
>
>Thanks all
>
>Mohammad 9K2ub
>
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