hard to find roller for patio door

A home owner from shelton, ct says:
June 10, 2011
hello, I am unable to identify the door manufacturer and need to replace the rollers. Local hardware stores don't have this 2 piece sttel ball bearing roller. the wheel is 1/4 inch wide and one of the pieces has D-719 stamped on it. Can you offer any guidance as to where to buy.

thanks

Guy
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Tom from SWISCO responded:
June 10, 2011
Good afternoon, Guy.

Can you take a few quick photos and upload them to the discussion board so we an take a look? This will help us research possible replacements. Please be sure to include dimensions along with your submission.
A home owner from shelton,ct says:
June 12, 2011
Mike

Thanks for getting back. I'm sending several pictures of the two piece unit. Some as one and others broken down from various sides/angles. One picture has written dimensions on sillouette drawings of the unit/pieces.

I hope this helps, please write back if you can't read the dimensions

thanks

Guy
User submitted photos of door rollers.
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Dave Sr. from SWISCO responded:
June 13, 2011
Take a look at our 81-027 roller, it looks like a match.
Sliding Door Roller Assembly, 1-1/4" Concave BB Wheel
Sliding Door Roller Assembly, 1-1/4" Concave BB Wheel
81-027
$8.45
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