3/8" when I rebuilt mine.
McMaster has several choices in stainless and steel.
$10/100 for steel, from $26/100 for 440 to $50/100 for 316 (if you are
really concerned about corrosion) stainless grades.
Certainly don't need any grade better than 100 (0.0001" round), with Al
races or need to be concerned about ball hardness.
MFJ/HyGain claims an upgrade the alloy of the ring gear and offers the
better part for rebuilds, but it doesn't seem to be in the parts price list.
I didn't see grease on the parts price list either. I used a TFE loaded
synthetic -Super Lube (Synco Chemical), you get much more grease for less $.
You might need new bearing retainers also. They look like nylon and
might be broken or cracked, depending on age and exposure.
Grant KZ1W
On 6/27/2011 7:02 PM, Richard Solomon wrote:
> So far, I have received two responses on the size. One said 1/4", the
> other said 3/8".
> Sort of renews my faith ....
>
> Guess I'll just open the thing up and measure them.
>
> 73, Dick, W1KSZ
>
> On Mon, Jun 27, 2011 at 6:49 PM, Charlie Gallo<Charlie@thegallos.com> wrote:
>> On 6/27/2011 Bryan Swadener wrote:
>>
>>> You'd also need to know the alloy and hardness
>> I've bought a stack of ball bearing balls over the years, and not once did I
>> have to spec alloy and hardness. You buy "Ball Bearing Balls". Let's face
>> it, our rotors are not high speed, high precision applications for these
>> things
>>
>> --
>> 73 de KG2V - Charles Gallo
>> Quality Custom Machine-shop work for the radio amateur (sm)
>>
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