Noise during turn

I've done a search of my issue but couldnt find anything referencing my exact issue.

My truck makes a rotational deep pitched squeal (sounds kind of like rubbing a dry erase board with a finger if that helps at all) while going forward and turning. It is difficult to replicate every time, but it usually occurs after I've been driving awhile and am circling a parking lot. From what I've gathered it occurs only at about 1/2-3/4 turn to the left, and doesn't occur in the other direction. It also sounds like it's coming from the front end. My best guess is something needs greased. Any ideas where I should start looking? TIA

 

Wheel bearing possibly.

 

Yes, It does sound like that could be it.