Long shot, dryer is making weird noises

https://leminal.space/post/36530815

Long shot, dryer is making weird noises - Leminal Space

It’s still drying fine as far as I can tell, the noises I attach here a recording of only happen around idk, 5% of the total drying time. They start, then stop again after a a few seconds or a minute, throughout the whole drying process. Mainly I was just wondering if anyone could imagine what it might be, what I could take a look at, or if it’s nothing to worry about. I understand it’s probably a long shot :D Thanks for whoever takes a look at this, here is the recording, first half is the noise, second half is normal running: https://gofile.io/d/RyWmFq [https://gofile.io/d/RyWmFq]

I had a very similar noise on my dryer. The tensioner was a friction pad instead of a wheel. It had worn through and was running the belt on metal before the belt wore through and snapped. If you’re digging into it might as well replace them both while you’re in there
I have no idea what those things are, but I’ll be sure to look for something like this when I open it up :D thank you so much!

Should look similar to this; it tensions the belt to the drum so it has the grip drive it. If yours is a wheel then the bearing is probably shot. You can manually spin the drum and listen for where the sound comes from to see it’s a different part failing (this pic is from a video of me doing exactly that)