Your reference is not a fan. It's just the motor. Good up to 100 Degrees with class B insulation. It also needs air-over cooling. Not particularly suited for an oven but I guess it could be mounted remotely with an isolated shaft and fan. What may be easier is to get a high temperature blower designed to handle high heat. The motor is outside of the hot air path.
Enter "high temp blower" in Grainger's search field and you'll get the type needed. There's a 82cfm blower for just over $79 here:
HVACR > Blowers > Small Centrifugal Blowers > Blower,82 CFM,2300 : Grainger Industrial Supply