Need Roller

I'm not sure that your roller is still made anymore. At first glance, this looks like it could be an old Bayform part, which was a company that developed screen doors in Canada some years ago but have since gone out of business. If that is what you have, then your only option is a new door.

Before I say anything for sure, can you verify that this is all there is to the roller assembly? If there is more, can I see it? Can you show me the part of the door where it installs? Lastly, would you happen to know who made it? If it's not Bayform, then any other name you could give me would be a huge help.

Thank you! That's what I was afraid of seeing. I'm sorry to say that this is the old Bayform door and your roller is no longer made. The only solution I've found to the kind of damage you show here is to buy a new door.

I'm sorry to be the bearer of bad news. 

I was happy to help. Sorry again that it wasn't better news, but best of luck with the rest of your project.