Fwd: FW: 5100 Sliding Patio Door Roller Photos

A handy person from USA says:
I hope that you can help me, do you know these parts ?
can generic rollers available at Lawes be used for any sliding doors, mine are Wausau 8' tall balcony glss doors very heavy. Let me know if you have any questions.
thank you
Nada K.
User submitted photos of a patio door roller.
Profile picture of Paul
Paul from SWISCO responded:
It's been known to happen, but it would depend on the dimensions. The rollers you show look like our 81-137 and 81-141, both of which a re made by Truth. You will need to carefully compare your measurements to those for the hardware you're looking to replace in order to confirm.
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