didn't get time today to try and get the bearings out of the deck wheel maybe tomorrow, here's a good pic ,this is the only damage to the mower in what 42 years thats pretty good going,what i might do here is go round to the place that repaired the pulley and see if it's possible to repair this disc assy along with the D shaped hole for the blade.
as this disc is no longer available

the deck is now stripped had a job and a half getting the bearings out but got there in the end only had to cut 1 bolt off ,I should get my new ultrasonic cleaner this week it's a 6 ltr one so most of these parts will fit in it
it will get well used on this mower.

Attachments
disc jpg.jpg (136.83 KB, 84 downloads)