Patio Door Roller Help

A home owner from USA says:
September 20, 2017
I have tandem 1-1/2" concave rollers. Problem: bearings becoming rusted out in 6 months. Track getting dirty and damp. I have 4 dogs that constantly come in and out 6-8 times a day.

Is there any sort of plastic or ceramic bearings? Or some sort of thick brush I can put on the door to keep the track clean? Is there a track guard I can put up to protect loose dirt or moisture from getting on the track?
Patio door roller
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Paul from SWISCO responded:
September 26, 2017
I'm afraid I don't know of anything available on the market that you could install on the door to brush away the dirt as you operate the door. We do have a stainless steel roller assembly that might match your roller assembly dimensions. Look at our 81-181 and compare it to your own hardware to see if they line up.
Acorn Patio Sliding Glass Door Roller
Acorn Patio Sliding Glass Door Roller
81-030
$9.97
Adjustable Tandem Roller, 1-1/2" Concave
Adjustable Tandem Roller, 1-1/2" Concave
81-095
$10.45
Stainless Steel Tandem Roller, 1-1/2" Concave
Stainless Steel Tandem Roller, 1-1/2" Concave
81-181
$45.20
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