patio door roller assembly

A handy person from ontario says:
Hi, I have a wooden patio door (probably 20-30 yrs old) that needs a new roller assembly. The name "Airlite CMHC 5537" is stamped on the window section. Is this a brand name and model number and if so do you carry replacement parts for it? Thanks, Brent
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Dave Sr. from SWISCO responded:
Can you send us pictures with measurements? Pictures would help us identify your replacement part.
A handy person from london on says:
yes we also have the same door year 1978. we are also looking for a new roller assembly
A home owner from Bartett IL says:
I have had the tabs brake off on a D-1607 2-roller tandem design two times. It is a heavy glass and steal sliding patio door. The tandom roller is 6-1/4"L x 1-3/16"H x 11/16"D adjustable steel housing with 2 steel ball bearing rollers.
What woul;d be your highest load Sliding Door Roller Assembly for my Patio Door?
Dan
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Donna from SWISCO responded:
Hi Dan,
Take a look at SWISCO product code 81-149, it is has a stainless steel housing as well as stainless steel wheels, measures 5-3/4" installation hole center to installation hole center. The weight capacity is 110 lbs per roller.
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