Ignition roller bearing things?!

[Jay-ZS+]

Has anyone else had issues with the top roller bearing dropping down preventng the key being put in?

Must be a lug or spring gone but it looks like im jacking the car as I use a tiny screwdriver to push it back up to get the key in? Tried popping it out but its very slightly larger than the slot for the key.

They dont seem to have any real purpose, Any ideas if it can be removed if I take out the whole assembly? Dont really want to go to the effort only to find its a sealed unit as I suspect it will be.