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.