Replacement rollers
Thank you for your patience during this busy season. I'm sorry to say that we don't sell this exact roller assembly. i suspect that it's just too old for us to be able to assist you with. Your best bet may be to use a wheel and axle kit like our 81-266 and just repair the roller, assuming of course that the wheel is the same size as the original.
We also sell full assemblies like the 81-248, 81-250, and 81-268 that seem like they function under similar principles. If you're handy then you may be able to find a way to get them to work, but the number of differences are still pretty high so it's not something that I can guarantee.