Hunter Douglas VertiGlide Rail Carrier Assembly
Thanks for posting! I'm sorry to say I cannot identify the hardware you need based on the brand and description. I'll need to see a photo of the existing part to determine if there is a replacement recommendation we can make.
Please don't hesitate to reach out with any questions you might have in the meantime.
Thanks for providing the photo. I'm sorry to say we would not be able to provide you with a replacement for the blind roller you are searching for. Your best bet would be to visit a local hardware store or to reach out to the manufacturer to inquire about where you might be able to obtain the replacement.
Our sincerest apologies we could not be of more help with this repair but please don't hesitate to reach out with any other hardware repair projects you might come across.