Gday timbo,
What you’ve got in the photos is perfectly normal
The 4 ‘dots’ in the second photo are simply stake marks. These are to secure the insert into the bearing.
Jamming issues such as yours can be caused by the darndest things.
Start with the basics.
The clutch plates sticking on the shaft is a logical assumption and it can be the problem but start right at the beginning. Check the entire drive system from the pedal back for sticking and seizing. I’ve had a recent first hand experience where the pedal was sticking on its pivot shaft. I had to physically knock the pedal off the shaft, clean it up and lubricate it with anti-seize. Lubricate and check the entire linkage from the pedal to the clutch.
Also check for belt damage or tensioner issues.
Have a look at how much clutch material is on the clutch discs. They start out 1/8” thick. 1/6” thick is minimum. If you have a lot of pedal free-play this can be an indication of wear. If your metal-to -metal then sticking could be a problem.
Did the plates seem free on the shaft when you took it apart?
A few more details and photos might help us to better understand your issues.
Cheers,
