Here is the process of how to replace the fan motor for my samsung oven. Please see the links below on the parts that I used in order to fully repair my oven. I have no affiliation with the amazon store and the links below, I am simply trying to provide you the parts that I used to make your life easier and to save you hundreds of dollars from buying a new appliance.
fan motor:
https://www.amazon.com/dp/B07W3SC55V?psc=1&ref=ppx_yo2ov_dt_b_product_details
fan blade cap nut:
https://www.amazon.com/dp/B00XIIQI20?psc=1&ref=ppx_yo2ov_dt_b_product_details
Fan blade:
https://www.amazon.com/dp/B00U0JTG7E?psc=1&ref=ppx_yo2ov_dt_b_product_details