need help identifying roller 1-1/8" OD concave steel wheel

A contractor from Ojai, CA says:
January 8, 2012
This roller has a 1-1/8" OD concave steel wheel. Width of housing 1s 1-9/32". Length of fixed housing is 1-5/8". Height of housing is 1-1/16"
User submitted picture of concave steel wheel.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
January 9, 2012
Thank you for posting. Have you seen our 81-229 Sliding Glass Door Roller? It looks very similar to your own sample. Please match its dimensions to your original hardware and see if you think it will match up.
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