Yes I was using the wrong terminology - Fly sheave cover = belt cover and Floating bearing quill = cup center assembly on the tail stock. Actually, it's the pin that is bent. I seemed to just be making things up on my own.
I also began disassembling the head stock and found out that the control hand assembly is missing some teeth...

Are there any specific items in the speed control assembly or the quadrant assembly that should get attention? Any important springs or tensioners that make sense to replace while I have the head stock apart? Any parts that you have and are willing to get rid of?