Throwout bearing

It feels like a good part but in the end it's all about the quality of materials used in it's construction. Horse power, etc,, can spin it much better than the human bean can in hand.
How long it will last... That is directly related to what you payed for it. Quality metals are far from cheap today. If it came from China, buy 1/2 dozen of them which would cost more than a quality part. Good luck
Well, it came from Brewers, so I'm confident.