Rotary Cutter Gearmore rotary cutter parts

[Seineil56k]

I have a gear more 48 inch mower, which does not have a part number on the manual for the back wheel bearing and assembly any ideas or suggestions?

 

[Seineil56k]

Here is another picture

 

[Seineil56k]

Cabin, I'm repairing a job that was done in the past but to me something is wrong and doesn't look right . Bearing size maybe a little bit off missing some type of plate cover. I've searched all three of those part numbers online and wasn't able to get any much information. I'm definitely going to check with the dealer