I've not had that issue yet and never pressed out the bearing to get the specs. The outer bearing is a HK3020 which has a 38mm outer diameter and a 30mm inner diameter but is 20 mm wide so the blocks are different. McMaster has some material that might work but I don't know the block specs. Do you have yours pressed out yet?
This might work but I'm not sure + they have a bunch more on their site. Let us know what you find please.
https://www.mcmaster.com/2868T396/
https://www.mcmaster.com/shaft-sleev...diameter~30mm/
Here are the seals needed for the axle assembly. They are 30x40x4 and you will need 6 of them.
https://www.oringsandmore.com/metric...rice-for-1-pc/
If you own a 3k machine you need to stock up on O rings for the hydraulics too. Let me know if you need those numbers and I'll dig them up for you.
Oh ya, Welcome to OCC.