Lubricants for a Nikon Hg lamp housing

[Michal Jarnik]

Listers,

A few of our Hg lamps have a problem with sticking alignment of the lamp
and especially the mirror. I took the mechanism apart (and even put it
back together :), pretty simple) and it seems it would need cleaning and
fresh lubricant. The temperatures in that part of the housing are quite
high and I am not sure what to use. Any smart ideas anybody?

Thanks, Michal

[Craig Brideau]

Maybe Silicone grease?  Depending on the grease it should (hopefully)
be heat proof.  I know lots of the servos in our systems use that.
You can even buy re-greasing kits from some companies that sell the
motors.  I'm not sure it would hold up to the lamp housing heat, but
Silicone is pretty temperature tolerant.

Craig


On Mon, Mar 15, 2010 at 7:27 AM, Michal Jarnik <[hidden email]> wrote:

> Listers,
>
> A few of our Hg lamps have a problem with sticking alignment of the lamp and
> especially the mirror. I took the mechanism apart (and even put it back
> together :), pretty simple) and it seems it would need cleaning and fresh
> lubricant. The temperatures in that part of the housing are quite high and I
> am not sure what to use. Any smart ideas anybody?
>
> Thanks, Michal
>

[Dale Callaham]

Do you really need a grease? There are dry lubricants - graphite powder
for instance - that should survive the <300C temps and strong light
radiation.

Dale

Craig Brideau wrote:

> Maybe Silicone grease?  Depending on the grease it should (hopefully)
> be heat proof.  I know lots of the servos in our systems use that.
> You can even buy re-greasing kits from some companies that sell the
> motors.  I'm not sure it would hold up to the lamp housing heat, but
> Silicone is pretty temperature tolerant.
>
> Craig
>
>
> On Mon, Mar 15, 2010 at 7:27 AM, Michal Jarnik<[hidden email]>  wrote:
>> Listers,
>>
>> A few of our Hg lamps have a problem with sticking alignment of the lamp and
>> especially the mirror. I took the mechanism apart (and even put it back
>> together :), pretty simple) and it seems it would need cleaning and fresh
>> lubricant. The temperatures in that part of the housing are quite high and I
>> am not sure what to use. Any smart ideas anybody?
>>
>> Thanks, Michal
>>