Identifying a Replacement Part

A handy person from Davenport FL says:
Hi,

I need to identify which part is this my Patio Glass Door Wheel Roller. I'm not sure about the measures, hope you can help with the picture with all measurements but approximately is:
Wheel 1-1/2"diameter x 1/4"width
Body 3-1/8" x 1" x 5/8"
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Casey from SWISCO responded:

Hello,

Your roller resembles the 81-181. Take a look and compare the specifications below to your assembly. We also offer the 81-157 but this roller comes with smaller 1-1/4" diameter wheels. Thanks for posting. 

Dimensions for 81-181
Dimensions for 81-181

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