Am I that predictable?! lol, I guess I am.
Yes, you have bearing savers fitted - in the middle of that cylinder is a grease nipple - pump some grease in, through that, and the spring assisted disc should start moving to the outer edge of the bearing saver.
However, yours look a tad rusty, so if doesn't move your spring may be rusted and seized. If you're mechanically minded they're' not too difficult to strip down, clean up and reassemble.
If you're not that way inclined, spend £25 on a new pair.
Here's a cut-away showing the inner workings:
As for spares - happy to oblige, or just do a Google search and the usual suspects will appear
All the best.