No identifiable name for old roller

Hello,

I don't believe your roller is still available, unfortunately, but take a look at the 81-050 and 81-084 to see if these will fit your door. Another option would be to see if you could use the 81-258 and 81-258S rollers to swap out the inside part of the roller and fit it into your existing housing. Note that if your wheel is only 1-1/8", you'll need to adjust the height of our rollers to compensate for the difference. 

We also offer the 81-223 wheel and 81-310 axle kit if you think that you could get away with just replacing the wheel. Look over the related videos that we think you'll find helpful with this repair. Thanks for posting!