Kilian roller assembly?

A home owner from Wisconsin says:
August 5, 2017
Hi. This is an aluminum glass slider from 1960 installation. The bearings have seen better days! The roller has a kilian name on it. No name can be found on patio door. Please see attached photos. It does not appear that the roller can be replaced without replacing entire assembly. I'm really hoping you recognize this part and have replacements. Thank you.
User submitted photos of a patio door roller.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
August 10, 2017
Your roller housing is very old and I don't believe it's available anymore. Your only option may be to just replace wheel and axle while reusing the old housing. Take a look at our 81-237 and 81-310 to get started and see what you think.
1-11/16" dia Nylon Concave BB Wheel
1-11/16" dia Nylon Concave BB Wheel
81-237
$5.27
Roller Axle Repair Kit
Roller Axle Repair Kit
81-310
$4.92
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