Ender 7 linear rail bearings

Hi all!
I am needing to replace the bearings on the X axis on my Ender 7.

Anyone happen to have any size info and where to get them?
Lots of stuff on Amazon, but I have no idea what to get.

Thanks in advance

I know nothing of the Ender 7 but I would look on Aliexpress for MGN12H linear bearings.

Thx for the response