Identify this bathroom extractor fan?

[vace117]

I have a bathroom extractor fan that has gone bad, so I need to replace it. If possible, I would like to just replace the motor, rather than opening up the ceiling to put in a whole new enclosure. The problem is, I don't know how to find a replacement. Maybe someone here can identify this beast? It is an older fan in an apartment in Canada, Winnipeg.

Here are a few pictures:
https://i.stack.Upload the image directly to the thread.com/cLisY.jpg

https://i.stack.Upload the image directly to the thread.com/HPWWT.jpg
https://i.stack.Upload the image directly to the thread.com/dj7dm.jpg

The cover says "Nutone", but I can't get any hits by Googling the partial text visible on the back of the fan.

Any advice would be appreciated!

 

[Andy5678]

Probably easier just to replace whole unit. Looks past it’s best anyway

 

[Deleted member 105166]

Buy something new, white, modern and quiet that will sit over the cut out, job done.