On 27/05/2021 07:57, Tim+ wrote:
Harry Bloomfield, Esq. wrote:
The Natural Philosopher laid this down on his screen :
Oven fan? probly phosphor bronze bushings. I'd say 3 in 1 except its gonna be
up to 200C.

Are you sure they run that hot? Our gas oven fan draws cool(er) air in
from the back/rear of the ovens, through the oven and out via the front
door. Idea is, it prevents heat build up around the built in oven
casing.


Electric ovens just circulate the contained air. As my wife bakes sourdough
bread regularly its often cranked up to 220C which I suspect is taking its
toll.

well mine - I had serviced the Aga yesterday so had to use the electric
oven to roast my dinner - blows warm air and roast-chickeny smells out
the front, so it's not *just* circulating

But you make a point, it's certainly not operating at ambient temps

Somewhere in between.

My experience with model plane motors with bronze bearings also suggests
they tend to go bad when the motor has been pushed too hard and got too hot.



Tim



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