Help with loose dryer part

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Brand:samsung
Model Number:dv42h5200ep/a3
Main Symptom: loose part under the drum
What happens & when:

Error Code (if any):
Parts or tests already tried:
Photos / video link: Found a loose part in the bottom of my dryer. It’s a round white plastic flange with hole in the middle and 2 latches on the sides. The hole is approx 1" inside diameter. Found it under the the back left side of the drum. Any idea what this is?

Maybe if I saw a picture of it I might be able to tell. Is it running and drying ok?