How to replace rollers

A home owner from Napa Ca says:
I have 1986 Charmac mirror doors that need new rollers, looks like part# 81-228 is a good fit for replacement. Can I cut the old ones out and is there replacement axles? ? Thank you
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Bob from SWISCO responded:

See if the 81-310 and the video below helps you replace the wheel in this roller. Alternatively, you could just replace the entire roller assembly. See if our 23-198 matches up. 

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