Uri511

Picked up the 6800 a few days ago at a ReStore and I was doing some sanding passes for a speaker cabinet when I noticed ball bearings on the floor next to me, the collet can still spin freely although theres a very light scraping sound when spun in the opposite direction. If anyone can help I need to know if its possible to fix this, also why was it discontinued. It seems like a generally good tool with various applications but if it has more issues than what I'm experiencing might just scrap it in exchange for a more reliable tool with less applications. (Attached is a picture of the tool and bearings)