Need replacement wheel and assembly

Hello, Mark. I can't determine what you have from these photos. We need to see a clear picture of this roller out of the door before we can offer anything. I specifically need to see it from the top, side, and rear. Dimensions of the roller housing itself would be particularly helpful.

These photos are perfect, thanks. This looks like a dead ringer for our 81-082. Look it over and let me know if you had any questions, or if yours differs in a some way I didn't notice.

We typically recommend sticking with the same type you have now, but it's up to you. Think of it this way: nylon wheels are kinder to the track, but tend to break sooner. Metal wheels last a lot longer, but they're a little rougher on the track. It comes down to whether you want to replace the roller or the track in, say, ten or fifteen years time.

Another thing to consider is corrosion. Metal wheels are more prone to rust, especially in salt air environments. Nylon wheels don't have that problem. If you don't live near the ocean, though, then that's less of a concern.

It was my pleasure. If you had any other questions, you know where to find me.