[TowerTalk] refurbish a Thrust bearing ?

[Dave_K9NX]

At 11:39 PM 9/11/98 -0600, T A RUSSELL wrote:
>
>Hi  Bill,
>
>Why use a thrust bearing at all?
>
>Most rotors can carry several hundred pounds of dead weight
>which helps keep their bearings in their races.  If a single
>thrust bearing is used at the top of the tower and it is tightened
>to carry the weight of the mast and antennas, then the side load
>actually increases on the rotor, increasing wear on the races in
>the rotor.  NOT a good plan.

Tom
Hmmmm..........

Explain how you would calculate the side loads on the rotator in both cases
below. 

First case: The weight of the mast supported by the thrust bearing,

Second case: Weight of the mast supported entirely by the rotator, Assume
the mast  has minimal (few thousandths) of play where it  goes through the
top of the tower.


Dave
K9NX

>
>de  Tom  N4KG
>
>
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