rear roller for sliding door

A quick learner from Edgewater Florida says:
ball bearings crushed in this roller
door track in good condition
door is heavy hired someone who took out rollers was able to
replace front roller from HD we'll see how long last
MH home Palm Harbor built 1991 so assume sliding doors to sunroom
installed at this time.
I hope pictures are visible. I am looking to buy this roller.
Thumbnail of the uploaded file named Sunroom roller bottom or top 2.JPG
Thumbnail of the uploaded file named Sunroom roller bottom or top 3.JPG
Thumbnail of the uploaded file named Sunroom roller side 1 001.JPG
Thumbnail of the uploaded file named Sunroom roller side 2 002.JPG
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:

Hello,

We've related three rollers that appear to be similar to yours. We do have others that are similar but these three look the closest. The 81-023 roller housing has a height of 1-1/4 and a thickness of 11/16" with a 1-1/4" wheel. 

The other two rollers I picked out have the same housing height of 1-3/8" and a thickness of 3/4". The difference is in the wheel size. The 81-278 wheel is 1-1/2" in diameter and the 81-279 wheel diameter is 1-1/4". Take a look at these three options to see which one matches up to yours. Also, take a look at the related mounting screws. Thanks for posting! 

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