lawn mower fan (Glasgow west end G12)

Hi, the fan of my mower has suddenly broken down and I am looking to replace this part.
This is an old model and this spare part is out of stock everywhere.
the model is Black and DeckerT1S hover mower
Just in case you would have a similar lawn mover or somehow this part.
I would rather just change the part to extend the life of our lawn mover but a similar type of mower would be great too. Thank you