Is the 280 Cannibalizing Itself?

Found this when emptying the bag on the Polaris 280 sweep.

Looks like part of a wheel bearing assembly or some such thing I’ve seen when taking the machine apart.

https://www.troublefreepool.com/threads/is-my-pool-sweep-cannibalizing-itself.220459/post-1929702

Bought and used a rebuild kit. All is well.