This wheel is off the back door with 1/2" offset

A home owner from USA says:
This wheel is off the back door and has a 1/2" offset.
Thank you!

What offset wheel should I use for the front door?

Great, if you can find out if the two offsets will work without the doors rubbing together, that would be great.
I would think the back set should be at least a 1/2" offset to work with a 1/8" offset on the front door. Or the front a 1/16" offset.
Let me know what you find out.
Thank you very much for your help,

(23-025 was suggested.) Sorry, I forgot to ask if the wheels are flat or tapered? They need to be tapered. They look like they are tapered in the photo you sent me.
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Paul from SWISCO responded:

Hello,

It looks like you may need the 23-024 front hanger with a 1/8" offset and 7/8" convex wheel and the 23-025 with a 7/16" offset for the front door. Take a look and see what you think. 

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