One of the wheels on one of these roller assemblies broke (ball bearings leaking out, door grinds open), so I'm looking for a replacement part. The only marking on here is a "V". Dimensions are listed below. I was thinking your part number 81-151 would work; however, the rollers I currently have are taller, with what I assume is an aluminum load-bearing spacer on top. So I'm not sure if that part 81-151 would suffice in this case.
Tom from SWISCO responded:
May 2, 2022
I don't think the 81-151 is what you want. Based on the design of your old roller, and your dimensions, I think our 81-156 is a much better option. I just recommend comparing your measurements against ours directly just to be sure. Ours differ slightly, so it pays to be safe. Alternate image for 81-156
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