How can i check if my Ryobi Combination Miter Saw (newish) is missing a roller bearing?

[Nintiblue]

 

 

 

 

I bought a rather nice (for my many uses) Ryobi two way Combination Miter Saw.  I noticed today (Friday 18 April 2025) that the saw guide was somehow stuck; it would not roll back and forth on its two poles guide rails.  After a more confident “nudge” it started rolling but sounded and felt a bit rough.  so I remove the two cover plate (see photos) and cleaned up all I could (saw debris) and applied WD40 to get the guide moving.   

Upon cleaning I noticed (see photos) that the housing that contains the roller bearings seems to have a bearing missing!

So my question is, should My Ryobi Miter have a Baeribg in that empty position?

[Nailbag]

Your welcome @Nintiblue 

This is another very good one as a dry lubricant that I use.

Nailbag