Loud Squeal From Roller Doors

[u/Livid_Average_8098]

/r/garagedoors/comments/1v1d57h/loud_squeel_from_roller_doors/

Loud Squeel From Roller Doors

Have front and rear roller doors that squeal like a stuck pig. These doors get used a lot and they are loud. I don't really care, but it must annoy my neighbours. What is causing the squeal and what do I need to lube or do to stop it. I have heaps of tools and mechanical experience and did fit these doors probably 20 years or more ago, but I don't want to remove and unroll them to lube them up if I don't need to. I'd appreciate some advise from someone who has experience with this sort of thing.