needed part for steel case drawers

A quick learner from Cincinnati says:
I'm looking for some replacement rollers for drawers in a Steelcase credenza. I'll send some pictures of the credenza and the rollers. I don't know the model or year, I'm afraid. I need four, but would buy a few extra if you've got them!

They are round, 3/4-inch in diameter and 5/16th wide with a black rubber ring in a groove. One side is flat and the other is indented.
User submitted photos of drawer rollers.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
I few years back I repaired a desk with this same type of roller. However. the rollers where not missing, they just popped off the track. What I did to reinstall them was use a rivet type fastener like our 33-208. As for replacing the roller completely, take a look at our 32-039. See if that could be used for your desk. I wonder if your missing roller have fallen into the desk itself and is laying under the last drawer. Take a look and see, maybe you can just put it back on!
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