[TowerTalk] OR-2800 - thrust nearings, use em.

[K8RI]

On 3/4/2013 10:41 AM, Jim Thomson wrote:
> A buddy of mine contacted m2 regarding the topic of placing all the weight onto the
> bearing inside the OR-2800.  Interesting response  from m2.
>
> Jim   VE7RF
>

Something that I wonder about, are the people we talk to the people who 
developed these rotators or "the new guard".  Then I wonder if either 
are engineers.

In the case of the Hy-Gain rotators I'm pretty sure we are talking new 
people as that design has evolved from the old CDE? line over many years 
with not all that many mechanical changes.

A design like the Hy-Gain, or ham series which are nothing but a pair of 
U shaped races.  Those need at least a minimal ore load as Steve said. 
Lift the load on those and you end up with a very shaky mechanical system.

I've never seen the inside of the Orion series so I can't comment on them.

73

Roger (K8RI)
> ................................................................................................................
>
>
>
> Hi,
>
> I have a OR2800PX rotor. I am told that all the weight (mast, antennas)
> should be placed on the rotor. I am interested to know the why. And what
> could go wrong if all the weight is not put on the rotor.
> Thanks.
>
> XXXX
>
> -----Original Message-----
>
> Hello  XXXX,
>
> That's a good question. Who told you that?
>
> The rotator can withstand a lot of weight - it has an 1800 lb (818 kg)
> Vertical Load Capacity.
>
> However, as with any mechanical system the more one reduces stresses in the
> system, the longer a system will last - generally speaking.
>
>
> Regards,
> Jason Boyer, N6EY
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