[TowerTalk] Worm Gears

[Robert Harmon]

Hi Rick,

It needs to be a specific synthetic gear lube. 
I called Hub City and they recommend their 460 PAG for worm gears.
They said that the Mobil 1 Glycol 460 is what they are using. 
My Hub City worm gear box takes over a quart so I am ordering 2 quarts.
BTW,  they should not be filled to the top.  About 30 % air space should be left for thermal expansion.
Heres some Hub City info on worm gear lubes, (below) 
and below that the specs on the Mobil 1 460 they are talking about.
I am ordering mine on line, not stocked anywhere locally. 


Hub City worm gear lube instruction sheet
http://www.hubcityinc.com/documents/LI-WG-S-D-071814.pdf <http://www.hubcityinc.com/documents/LI-WG-S-D-071814.pdf>


Their recommended Mobil 1 synthetic lube
http://www.wardieh.com/admin/document/(2786f39d8352b23e50cf17c424e017c5).pdf <http://www.wardieh.com/admin/document/(2786f39d8352b23e50cf17c424e017c5).pdf>


Bob
K6UJ







> On Jul 1, 2015, at 2:52 PM, Richard (Rick) Karlquist <richard at karlquist.com> wrote:
> 
> 
> 
> On 6/30/2015 3:52 PM, Robert Harmon wrote:
>> I dont want sabotage our worm gear discussion but wanted to throw in a
>> question about gear lube for a worm gear box.    I am going to change the gear oil in my US tower
>> box.  It is a Hub City worm gear.  Thinking of using a Mobil 1 Synthetic gear lube,  a PAG type.
>> Dont ask me what the PAG means but Hub City recomends a PAG synthetic.  Any one used a
>> synthetic ?
>> 
>> Bob
>> K6UJ
>> 
> 
> Mobil 1 LS comes in 75W90 and 75W140.  Which is correct
> for Hub City?  Is 1 quart enough for a gear box?
> 
> Rick N6RK
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