Help needed: J-B Weld for an oven

[donprohel]

My crappy Siemens ventilated oven has a problem: the oven fan “rattles” because is it not fixed to its axle.

For what I have seen, there is not a strong or fixed bond between the fan and the axle (crappy design…) it seems that the fan is not held by the bolt (I hope this explanation is understandable).

I am thinking of gluing the fan with a J-B Weld epoxy that should withstand 300 °C (572F); the oven itself cannot go higher than 250 °C (482F) the mechanical stress is minimal, I just need to keep the fan in place.

What do you think? Is it such a stupid idea?

The J-B Weld epoxy is in the link, it seems to be a German version of some other J-B Weld epoxy.

Amazon.de

 

[reactor]

JB Weld

It should hold. Your biggest problem might be getting the fan perfectly centered on the shaft before you bond it. It the glue hardens with the fan rotating in an eccentric orbit, even slightly, you will have permanent vibration.

 

[mattl]

Hmmmm- got me thinking-

My oven has developed some rust through spots and I can see the hidden element through them, seem to be getting bigger.  I'm wondering if the high heat version of JB weld might work to fill the small holes, rated up to 1000 F.

 

This is my fault since I used the oven as a steam oven for a number of years.  I had thought there was enough heat in the oven to dry up the steam but apparently not.  It's a fine oven and hoping to find a way to fix the issue.

 

[dermacie]

I have used Epoxy on my 1971 charmglow gas grille about 4 years ago that has developed pitting,  it has held and worked good. 

 

[dermacie]

I have used Epoxy on my 1971 charmglow gas grill about 4 years ago that has developed pitting,  it has held and worked good. 

 

[donprohel]

@reactor

You are right, but the fan is very, very, very loosely fixed on its shaft, and nevertheless it runs smoothly, so the perfect balance should not be an issue.

I assume that it is because the fan is very lightweight and the speed is not very high